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111-708: The river originates in the Sierra Madre Occidental , and flows through Durango and Nayarit states to empty into the Pacific Ocean in Marismas Nacionales Biosphere Reserve . A few fish species are native to the San Pedro Mezquital River. Among these are the two surviving Characodon splitfin species, which are both highly threatened. The extinct Durango shiner ( Notropis aulidion )

222-633: A marine basin which separated the island arc that came to form the Guerrero terrane from the accretions that came to form the Sierra Madre terrane. It contains a lower formation made up of pillow basalts with pillow breccias , tuffs, and shales underlying a group of pelagic limestones , oozes , and turbidites . Covering the southern basement are sedimentary and metamorphosed sedimentary rocks containing argillite , limestone, volcanic schist , slate , and greywacke which were exposed in

333-416: A source of water , in an otherwise arid environment from the increased precipitation from the mountain range. As such, rivers that have headwaters in the mountains provide water for irrigation in the surrounding lands. The need for water to irrigate prompted the construction of dams, which has been the source of several environmental concerns in the area. The northern end of the range is more arid; hence,

444-520: A decree declaring Aguascalientes a department, based on the decrees of December 30, 1836, and June 30, 1838, without ever referring to the one from March 23, 1835. Finally, in the project that would be the Constitution of 1857 , that was presented on June 16, 1856, Aguascalientes was included as a state in Article 43; it was passed unanimously by the 79 deputies present, ensuring the establishment of

555-448: A desert landscape. Oak forests are the predominant plant life, and extend into the lowland deserts. This forest and canyon land provided a place for a variety of indigenous people to live, until Spanish settlers with associated mestizos came into the area to found towns for the silver mines in the area. The major industries in the area now are agriculture and forestry, which have become contentious because of land degradation and

666-505: A few towns of note, including Creel, Chihuahua , with 5,000 inhabitants; it serves as a stop on the train line. South of Copper Canyon is the town of El Salto, Durango , situated along highway 40. To the west is Copala, Sinaloa . To the south live the indigenous Cora people in the towns of Jesús María and La Mesa del Nayar. In addition, 1,000 people live in the village of Huajimic in Nayarit. The Bolaños River valley of Jalisco

777-807: A major mountain range system of the North American Cordillera , that runs northwest–southeast through northwestern and western Mexico, and along the Gulf of California . The Sierra Madre is part of the American Cordillera , a chain of mountain ranges (cordillera) that consist of an almost continuous sequence that form the western "sounds" of North America , Central America , South America , and West Antarctica . The Spanish name sierra madre means "mother mountain range" in English, and occidental means "western", these thus being

888-515: A plant to make vehicles like the QX30. In the rural area, Aguascalientes was once the largest national producer of grapes and wines . This tradition ceased gradually due to the Spanish Royalty's wishes that grape and wine production be limited to the mother country. Thanks to the influx of immigrants into Mexico, the wineries and vineyards remain and flourish. Guavas are also produced in

999-555: A restaurant business owner from Los Angeles , bought a second division franchise which he relocated to Aguascalientes where there was no professional football club. The club played its last tournament in 2000-2001 when the Governor of Aguascalientes bought first division club Necaxa , with its national following, and relocated it from Mexico City. Gallos de Aguascalientes was then sold to Chivas , which changed its name to F.C. Tapatio de Guadalajara , affiliated to Chivas. The city

1110-624: A series of Paleozoic sedimentary sequences from a deep marine environment underlying it, considered by some to be part of the Cotes Terrane and by others to be transported . In some areas, distinct sedimentary rocks can be identified by shallow-water Silurian and Mississippian sedimentary rocks underlying deep-water Pennsylvanian and Permian , which are divided by Mississippian rhyolite . The Permian clastics contain some detrital rock that sit alongside low-grade metamorphosed sedimentary and volcanic rocks with serpentinite. South of

1221-629: A series of folds, thrust , and left lateral faults date from the middle Miocene. This may be evidence for a left transpressional shear zone . The area between this boundary and the Aguascalientes fault is filled with numerous grabens and half-grabens, as well an east–west left shear zone, the El Roble shear zone. At the west end of these grabens and half-grabens are the Pochotitan and the more northerly San Pedro fault systems, which form

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1332-573: A smaller scale, mineral deposits are distributed in formations of the Sierra Madre, although the events that placed these deposits vary throughout the mountains. The Guerrero composite terrane contains many of the economic deposits, often found in ore bodies younger than the Cretaceous. Gold and silver deposits most commonly occur in the altered andesites of the early volcanics, typically these deposits are between 30 and 50 million years old. These are believed to be caused by later intrusions into

1443-435: A summer monsoon , and two dry seasons each year. Air pressure changes in northwestern Mexico and the southwest United States are the main causes of seasonal variation in the Sierra Madre. A high pressure area that rests over the mountains in the winter begins to move north of the mountains into New Mexico during the month of June. The high pressure begins to break down and move south during September or October; however,

1554-407: A thick core covered by volcanics and eroded by numerous rivers. Some have suggested that the basement of the mountains have numerous intrusions made by mafic magma . At their surface, the mountains are made up of large-scale ignimbrite sheet that has been incised by rivers flowing from rainfall in the mountains. The surface of the plateau is almost exclusively from the second series of flows causing

1665-476: A town came from the order that King Felipe II gave the judge of the court of Nueva Galicia, Don Gerónimo de Orozco , in which he stated that he should look for a rich man to settle in the territory with the purpose of expelling the Chichimecas and of assuring safe passage. Gerónimo de Orozco, following that order, looked for someone who would accept the king's order and found a man named Juan de Montoro in

1776-410: A war between Aguascalientes and Zacatecas, and as a consequence Zacatecas would strengthen the partitions, now municipalities, of Cavillo and Rincón de Romos. In July 1848, Aguascalientes accepted the peaceful annexation to Zacatecas; but continued making efforts to separate through Miguel García Rojas. It was not until December 10, 1853, that López de Santa Anna, using his extraordinary powers, issued

1887-409: Is a high plateau of volcanic rock that is eroded in areas to reveal a basement composed of plutonic and sedimentary rocks underlying the two groups of extrusive volcanics. The lower of these groups is a series of volcanic rocks formed by lava flows . The surface of the plateau is made up of a second series of volcanic ignimbrites , covered mostly by clay rich organic soils . Some intrusions in

1998-423: Is also a belt of iron deposits further east. Most soil in the mountains is covered by an organic -rich layer over layers rich in clay . Soils are commonly phaeozems that are up to 100 centimetres (39 in). Some soils are cambisols that are less than 2 metres (6.6 ft) deep and well- drained . Due to the high clay content, which blocks water from being absorbed into the soil, larger rock particles in

2109-448: Is also famed for its environment of relaxation, and for its safety and cleanliness, as it is often described by people when traveling to this part of the country for conventions or tourism. Most tourists go to the capital. A few tourists explore the former mining towns in the north of the state (in the municipalities of Asientos and Tepezalá ), which are now almost ghost cities. The haciendas , hot springs , and baths scattered around

2220-495: Is called "el corazón" which means "the heart" of Mexico because it lies in the middle of the country. This city is often considered, by its locals, to be one of the safest and cleanest in Mexico. Also, the city of Aguascalientes is known as "the land of the good people". Club de Fútbol Gallos Hidrocálidos de Aguascalientes was a football club from Aguascalientes, Mexico. The club was founded in 1994, when Salvador López Monroy ,

2331-563: Is considered the national fair of Mexico and contributes much to Mexico's economy. Recently, its capital city has gained the reputation as a great destination for its superb colonial architecture visible in the colonial center, as well as the modernity and dynamism in the outskirts. The city is home to Lic. Jesús Terán Peredo International Airport , where 9 flights per day depart to Mexico City , Tijuana , Dallas/Fort Worth and Houston . The city also hosts many conventions every year. It benefits from its excellent central location. The city

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2442-470: Is five stars, eight bridges for the next five years, a Financial District around the Airport, A Texas Instruments Assembly-Test Plant, A Nissan Assembly plant, a Toyota assembly plant and several others projects place Aguascalientes as the third most competitive state in Mexico with more than US$ 12,000,000 in foreign direct investment per year (around 8 percent of Mexico's FDI) even though its population

2553-553: Is formed by the range is cut by deep river valleys. This plateau is formed from volcanic rock overlying a basement of metamorphic rock. This uplift has caused changes in weather patterns; increased rainfall occurring in the mountains has provided areas where ecosystems can form in wetter areas than surrounding land. This water source forms watersheds that provide the arid surroundings with water that makes it possible to irrigate and farm crops. The wet ecosystems are islands of biodiversity, differing significantly from what would otherwise be

2664-777: Is home to the soccer team Club Necaxa , which plays in Mexican first division. The club left Mexico City and relocated to Aguascalientes following the 2003 opening of Estadio Victoria , which is now the club's home venue and one of the best stadiums in the country. The state has one football team in the Mexican Premiere League, Club Necaxa , one professional baseball team in the Mexican League , Rieleros de Aguascalientes (The railroad men), and one professional basketball team, Panteras de Aguascalientes (Aguascalientes Panthers) In December 2009, Necaxa

2775-407: Is in the north-central part of the country, bordered by Zacatecas to the north, east and west, and by Jalisco to the south. As of the 2020 census, Aguascalientes has a population of 1,425,607 inhabitants, most of whom live in its capital city, also named Aguascalientes . Its name means "hot waters" and originated from the abundance of hot springs originally found in the area. The demonym for

2886-499: Is just about 1.03 percent of the country. However, recently it has also benefited from heavier tourism , since the capital city has gained prestige and status as a national destination for its colonial beauty and cleanliness. In addition, the haciendas and baths around the state have historic and recreational importance. Although this state is not often billed as a tourist center, international visitors, as well as citizens from all over Mexico, are attracted to San Marcos Fair , which

2997-399: Is low, averaging 526 mm (20.7 in) and is mostly concentrated in summer with winters being dry. Aguascalientes is subdivided into 11 municipios (" municipalities "). This state originated around the times of colonial Spanish influence. It is located in the middle of the country and is now beginning to make a name for itself as an industrial power within Mexico. The state

3108-461: Is marked by different volcanic processes. The first was a continuation of the Oligocene flare-up, which lasted through the early Miocene. This may be a distinct second occurrence of the same process, placing silica-rich lava above Oligocene rocks. Also in the early Miocene more intermediate basaltic andesites occur along faults and in grabens. Beginning in the early Miocene and continuing into

3219-651: Is populated with mining communities, such as San Martín de Bolaños , which has a population of around 3,000. Few paved roads cross the mountains, meaning that travel times can be long, even between cities that are relatively close. In the north, Mexico Federal Highway 16 connects Hermosillo , Sonora and La Junta, Chihuahua. In the mountains, the La Entrada al Pacifico Corridor is an incomplete road intended to connect Los Mochis , Sinaloa and Chihuahua. Durango and Mazatlán are connected by highway 40 , around 24 degrees north latitude. The Sierra Madre Occidental

3330-492: Is the mountain climate and fauna that attracts locals for camping activities. In winter, the temperature sometimes falls to −4.44 °C (24.01 °F) when the weather is poor. Usually, Sierra Fría is the only part of the state that gets snow during winter. In the city of Aguascalientes one of the best sunsets in the world can be seen in Cerro del Muerto; the hill resembles the shape of a man lying down. The city of Aguascalientes

3441-856: The Aguamilpa Dam begun in 1991 and the El Cajón Dam upstream from it. To provide irrigation water for farming the dry basin , the Nazas river was dammed in the 1930s and 1940s. This has led to the former drainage lakes in the area drying up, and soil depletion from the elimination of the river as a source of soil. Due to the continued logging in the area, erosion on the slopes of hillsides has increased. Numerous small populations live in Copper Canyon, some of them around old missions. Many settlements consist of single families or small family groups near agricultural fields. There are also

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3552-567: The Free and Sovereign State of Aguascalientes ( Spanish : Estado Libre y Soberano de Aguascalientes ), is one of the 32 states which comprise the Federal Entities of Mexico . At 22°N and with an average altitude of 1,950 m (6,400 ft) above sea level it is predominantly of semi-arid climate ( Bhs and Bhk ). The state is located in the northern part of the Bajío region, which

3663-664: The Grand Canyon . This plateau has an average elevation of 2,250 m (7,380 ft) with most of the more eroded canyons on the western slope, due to the higher moisture content. The highest elevations occur in the Tarahumara range. The exact elevations of the highest peaks are not known within accurate enough ranges to determine their relative elevation. The highest point is probably Cerro Mohinora , located at 25°57′N 107°03′W  /  25.950°N 107.050°W  / 25.950; -107.050 . Estimates for

3774-438: The Gulf of Mexico . On the western side of the mountains, which are affected by the largest change in precipitation between the dry season and monsoon season, in the monsoon season rainfall can exceed 300 mm (12 in) in a single month. The southern region receives more of the rainfall than the northern. Much of this precipitation occurs as tropical storms . As the high pressure over New Mexico breaks down, rainfall in

3885-741: The Nazas River and Aguanaval River drain the mountains into a closed basin. These mountains supply 90% of the water used for irrigation within the watershed. North of this system is the Conchos River which drains into the Rio Grande . Along many rivers the arid conditions have caused courses to be dammed to provide water for irrigation. These dams have caused concerns along with those caused by other activities. The Yaqui has been dammed with three large reservoirs along its course. The Río Grande de Santiago has also been dammed, including

3996-468: The Seven Laws . The constitution did not acknowledge Aguascalientes in the rank of department , but it saw fit to eliminate the states , together with the federal regime, replacing the states with departments, and because of this it continued to belong to Zacatecas. What can be said, since in the local constitution of Zacatecas of 1825, Aguascalientes was contemplated as a member of said state. It

4107-618: The Sierra Madre del Sur and the Eje Volcánico Transversal (Transverse Volcanic Axis) of central Mexico after crossing 1,250 km (780 mi). The mountains range from 300 km (190 mi) from the Gulf of California in the north, but begin to approach within 50 km (30 mi) of the Pacific in the south. These mountains are generally considered to be part of the much larger American cordillera ,

4218-691: The Spaniards , the territory of what is now the State of Aguascalientes was inhabited by Chichimecas , who made the territory difficult to access. In fact, the total occupation of the lands of El Bajío was a task that would take about two centuries. With respect to this, Viceroy Luís de Velasco offered municipal benefits to those who established settlements to confront the Chichimeca. And for his part, Viceroy Gastón de Peralta decided to confront them directly, which did not end with good results. It

4329-639: The Yaqui River , which drains that area, is an important source of irrigation in the state of Sonora. The Yaqui drains into the Gulf of California , as do the Fuerte River in Sinaloa and the Humaya River further south. The Río Grande de Santiago drains 100,000 km (39,000 sq mi) from the southern slopes of the Sierra Madre. Along the more arid eastern slopes of the mountains,

4440-428: The eastern cottontail , which lives in the forests of the western slopes, cliff chipmunk , rock squirrel , Mexican fox squirrel , and various species of Cricetidae . Raccoons , hog-nosed skunk , and hooded skunk live in the mountains. The white-nosed coati lives on the western slopes, and the ring-tailed cat lives throughout. Many species of bats live in the mountains also. A variety of lizards live in

4551-822: The "Western mother mountain range". To the east, from the Spanish oriental meaning "eastern" in English, the Sierra Madre Oriental range or "Eastern mother mountain range" runs generally parallel to the Sierra Madre Occidental along eastern Mexico and the Gulf of Mexico . The range extends from northern Sonora , a state near the Mexico–U.S. border at Arizona , southeast towards to the Trans-Mexican Volcanic Belt and Sierra Madre del Sur ranges. The high plateau that

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4662-580: The Aguascalentenses, and by way of punishing Zacatecas for supporting the Revolution against them, by Federal Decree of General López de Santa Anna dated May 23, 1835, in the third article; ordered that Aguascalientes to be separated from Zacatecas territory, without granting the territory any specific category, reinstating the appointment of the political boss, Pedro Garcia Rojas . With respect to this, it must be mentioned that said order

4773-596: The Cortes and Carborca Terranes is the San José de García Terrane, which is a combination of Cretaceous arc volcanics and volcaniclastics , which may be thrusting over the Cortes terrane. The southern part of the range is made up of the Guerrero Composite Terrane, a large body, which is actually a complex of five different subterranes, not all of them within the main body of the Sierra Madre. However,

4884-543: The Indian fighter Juan Domínguez, were to be created, which were: the presidio at Las Bocas, later called Las Bocas de Gallardo, situated on the border of Aguascalientes, in what was the jurisdiction of the mayor of Teocaltiche , presently the border of Aguascalientes and Zacatecas; the presidio at Palmillas, which was located near what is now Tepezalá; and the Ciénega Grande presidio, established around 1570. The latter

4995-510: The Liga de Ascenso and First Promotion title in their franchise history. On April 16, 2011, after a draw 1–1 with Atlante F.C., the club's first key game in 2011, Necaxa could not cumulate enough points in order to evade relegation. For a second time, Club Necaxa was relegated to the Liga de Ascenso, the second tier, for the 2011–2012 season. One of the biggest soccer to live Judith Ramírez played for this team from 2001 to 2017. Aguascalientes hosts

5106-665: The North, and a number of different accreted terranes , which are mostly covered by Cenozoic volcanism. The northern extent of the Sierra Madre is the Cortés Terrane, although the northern extreme of this contains a small portion of the Carborca Terrane. Some of the northern end may also be underlain by a Precambrian basement placed around the same time as the Grenville Orogeny . Some of this area has

5217-712: The Pacific. In addition to gold and silver and their related deposits, tin , iron , and mercury occur, sometimes in later units, mostly in later volcanics, and Molybdenum occurs in the mountains, often along with older copper deposits or in Oligocene deposits in the east. The belt of tin deposits lies mostly within the eastern slopes from Durango to Guanajuato. In these areas, tin occurs in rhyolitic ignimbrites in many, possibly over 1000, small deposits of cassiterite . Typically these deposits are divided from overlying ignimbrites by breccia, which may also contain ore. Many of these are thought to be hydrothermal deposits To

5328-525: The Revolution. The explosion of the Maderist movement embraced the cause in the company of some other compatriots, and the rebel action of the town and the region stayed formalized. The state is located about 480 km (300 mi) from Mexico City in the macroregion of El Bajío, specifically the Bajío Occidental (western Bajío). It covers 5,471 km (2,112 sq mi), or 0.3% of

5439-490: The Sierra Madre Occidental include tufted jay , the "gray-eared" subspecies of red warbler , eared quetzal , thick-billed parrot , and formerly included the imperial woodpecker , which now may be extinct. The rivers and streams of the range contain some of the southernmost trout populations in North America. These populations may be native, although this is not universally accepted. Invasive fish compete with

5550-405: The Sierra Madre ends. Because of the monsoon, the summer accounts for the majority of rainfall in the area. The spring and fall dry season separate out a weaker wet season in the winter. In addition to increasing in the southern ranges of the mountains, rainfall increases in the higher elevations of the Sierra Madre Occidental. Humidity in the mountains varies at wide levels as does rainfall. In

5661-454: The Sierra Madre from the central Mexican Plateau . The more southern one is the north–south Aguascalientes fault extending 150 kilometres (93 mi) from Altos de Jalisco to near Zacatecas, where it joins the more northern northwest–southeast trending San Luis–Tepehuanes fault extending from Guanajuato to Durango. The southern boundary of the Sierra Madre Occidental with the Jalisco block is

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5772-627: The Southern Cordilleran Basaltic Andesite Suite. The tuffs are above a thick formation of lava rock. Around five or six units have been identified, mostly around the Copper Canyon area. These tuffs have allowed wide-ranging correlation with formations in other geographical areas, for example Death Valley . During the Miocene, three periods of volcanism marked separate events in the Sierras. Each period

5883-584: The Superior Board of Royal Property, the sub-delegation of Aguascalientes became a dependency of Zacatecas . In the Mexican War of Independence , in the territory which is today the state of Aguascalientes, the fires of independence were stoked by illustrious and courageous men such as Valentin Gómez Farías , Rafael Iriarte , Rafael Vázquez, and Pedro Parga. Confusion has arisen regarding

5994-622: The Villa of Our Lady of the Assumption of Aguas Calientes; later changing to the city of Aguascalientes, which remains its name today. In the act of its establishment, the Villa de San Marcos (Aguascalientes) was awarded the highest mayoral jurisdiction under the Kingdom of New Galicia . As of December 4, 1786, on the occasion of the issuance of the "Ordinance of Mayors", it became a quartermaster sub-delegation. On April 24, 1789, by order of

6105-403: The activity of magmatism in the area, forming the first major igneous series in the area. The igneous series are made up of formations of plutonic and volcanic rock, which would later be exposed. Interbedded with these rocks are sedimentary deposit rocks. In the center of the range, some of these rocks have been deformed by tectonic forcing that occurred at the same time. The southern part of

6216-544: The animal may have been extirpated; the black bear population is small, and the Mexican grizzly bear that once resided here is confirmed extinct. Jaguars and ocelots are also now rare. On the other hand, mountain lion and bobcat are more common. On the eastern slopes there are American badger , coyote and gray fox that live across the mountains. Native ungulates include the white tailed deer , mule deer , and collared peccary . Rodents and lagomorphs include

6327-550: The area and surroundings. The Tarahumara frog lives in the oak and pine stands preferring moving water to pools. The southern extent of the Sonoran mountain kingsnake 's range is the Chihuahuan desert into the mountains. Other snakes and frogs live in the mountains, and many species live in the western slopes. Birds frequent the mountains, some as a migratory path and others as native species . The migratory birds often use

6438-450: The area have deposited ore veins that are commercially viable. The landscape was shaped after rock placement. Rivers cut valleys into the plateau, following folds in the rocks. Rocks have broken off of the slopes, forming rocky sides. The bedrock is covered by the clay rich soils, except in eroded areas, where water carries away deposits leaving a stony surface. The basement is thought to be Older North American basement, especially in

6549-456: The area of the country, and has a little more than one million inhabitants. Most of its inhabitants live in the densely populated metropolitan area of its capital city. The state as it is now was created on October 27, 1857, when it was separated from Zacatecas after the tale says that the wife of the governor of the state promised to give a kiss to the President of the time, in exchange for

6660-442: The area to the west as an overwintering area, and migrate north along the western slopes. In the northern canyons birds may be divided into different habitats , or more specifically, the different types of forest, leading to differences in range by elevation. Some of this difference by elevation may even extend the range of some species, enabling tropical species to use the mountain valleys for migration. Bird species endemic to

6771-421: The area typically have large responses to the change in climate with each season. Monsoon season is the largest of these effects, with leaf buds following only a few months after the rains begin. Flowering season occurs in the months preceding the summer monsoon. This is only the peak flowering season, with plants flowering throughout the year. Due to the early flowering, fruit is ripe and seeds are dispersed at

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6882-422: The area, by combining species from different regions. Animals typically associated with arid and mountainous habitats share the mountains with species associated with habitats further south. There are many carnivorous and omnivorous mammals native to the area, although several are extirpated or are part of threatened populations. The Mexican wolf 's range in the mountains is limited to the foothills of Durango or

6993-400: The beginning of the rains. There are also areas where plants have little response to the seasons, particularly those areas that experience moist conditions, caused by the elevations. These plants may maintain leaves through times when other areas are in the dry season, during which most deciduous trees have no leaves. The mountains are often a corridor for species allowing more diversity in

7104-639: The breakdown is usually at a slower pace than the movement north. This high pressure belt is associated with the mechanics that form the Bermuda High . The climate in the mountains is mild. Summer temperatures maintain a constant level. Maximum temperatures are typically in July at around 31 C with average temperatures of the order of 16 C during this same period. Mean annual temperatures are between 13–18 °C (55–65 °F) above 1,800 metres (6,000 ft). Below-freezing temperatures can occur in

7215-595: The canyon of the Santiago River. Near these sediments late Oligocene to early Miocene granite and granodiorite intrusive bodies occur. A possible cause of this is that these bodies were roof pendants which were uplifted by plutons . Mesozoic limestone also occurs in northern portion of the mountains, mostly from the Cretaceous. Towards the end of the Cretaceous , the Laramide orogeny increased

7326-455: The caverns of the Sierra del Laurel and near the present village of Las Negritas testify to the presence of humans in this territory for more than 20,000 years. Later in the colonial times, Pedro Almíndez Chirino was the first Spaniard who entered the territory, perhaps by the end of 1530 or the beginning of 1531, following the instructions given by Nuño de Guzmán . Before the arrival of

7437-406: The city of Santa María de los Lagos . He accepted the assignment and, accompanied by eleven other people, headed to the territory and thus founded the town of Aguas Calientes on October 22, 1575. It has been noted that it was called San Marcos originally, changing its name on August 18, 1611, to the Villa of Our Lady of the Assumption of Aguas Calientes. And finally, from June 2, 1875, it was called

7548-643: The early flows. Fissure-vein deposits have been divided into two groups of fissure vein deposits, which are divided geographically into an eastern and western series. In the east, the gold and silver are accompanied by lead and zinc . In the south, the Bolaños mine district is contained with the Bolaños Graben. Some also occur as epithermal deposits. Also, some gold occurs along with copper in Cenozoic iron-oxide skarn and replacement deposits along

7659-460: The early morning before dawn, the air is almost saturated (often over 90% relative humidity ) near the mountain tops with low clouds over the range. Lower in the range, air is not as near saturated in the morning. Seasonal variation in humidity is also present with average May and June relative humidity around 50%, with 25% possible during the day. Also during the day, relative humidity drops and cloud levels rise as temperatures rise. The humidity of

7770-566: The east of these units is a belt of more mercury deposits, followed by another belt of manganese deposits, although these deposits are mostly limited to Chihuahua and Hidalgo. Iron occurs in three different regions placed by different mechanisms. Along the Pacific there the numerous skarn and replacement deposits mentioned above with relation to gold. Iron occurs in Durango in the form of magnetite lava flows, which are often surrounded by smaller hematite deposits, thought to be ash flows. There

7881-404: The eastern slopes have increased organic content and a clay heavy layer that is developed more than those of the more arid eastern lands. The thickness of soil layers also increases. Problems with soil degradation have been aggravated by the cultivation of drug crops, leading to deforestation of many areas. Other problems include overgrazing , which has led to terracing from cattle paths and

7992-419: The exact date when Aguascalientes formally separated from the territory of Zacatecas. By virtue of having, de facto, defeated the liberal government of Zacatecas by rising against the central government, president Antonio López de Santa Anna passed through Aguascalientes, where he was well received by the people who had wanted to separate from Zacatecas for some time. Taking advantage of the independent souls of

8103-496: The fall 2009. In the spring 2010 campaign, Necaxa's only loss in the season came against F.C León, Necaxa faced this other soccer team on May 8, 2010, for the second leg of the Bicentennial Closing Spring Tournament of 2010. Necaxa won 4–2 on aggregate. Necaxa abandoned the Liga de Ascenso and returned to First Division fall 2010 season. As a result of this match Necaxa won the bi-championship in

8214-422: The formation of a soil crust , and soil acidification , which poses a risk to some grasslands as of 2002. The climate varies considerably between the northern and southern extents of this long mountain range. Seasonal variations also occur due to the presence of large bodies of warm water delivering warm damp air from each side of the range. This region undergoes a seasonal variety with two wet seasons, including

8325-609: The height of the mountain start around 3,040 m (9,970 ft) and go up to 3,300 m (10,800 ft). However, Cerro Barajas, at 26°24′N 106°5′W  /  26.400°N 106.083°W  / 26.400; -106.083 , may be as high as 3,300 m (10,800 ft) although other sources give 3,170 m (10,400 ft) as the elevation. Cerro Gordo, at 23°12′N 104°57′W  /  23.200°N 104.950°W  / 23.200; -104.950 , may have an elevation between 3,350 m (10,990 ft) and 3,340 m (10,960 ft). The southern end of

8436-471: The higher mountains, with precipitation occurring as snowfall certain times of year. During the summer monsoon, wind patterns undergo large-scale changes. In May there is very little large-scale wind current through the mountains, most circulates around the mountains, although onshore flow is present. As the high pressure moves north, air is pulled off the Gulf of Mexico, bringing easterly winds aloft to

8547-465: The interior basins . These faults are commonly covered by alluvium and basalt , making them difficult to discern, but can be found in certain fault blocks . Grabens have formed in the north, and some of these are filled with volcanic and sedimentary floors, and long depressions have formed in the southern Sierra Madre. The faulting decreases in the center of the range where the faults are mostly small normal faults , but increases once again on

8658-562: The middle, an arc of andesite was placed during the spreading of the Gulf of California . The basin and range-style faulting of the middle-late Miocene took place at the same time as the placement of alkali basalts , In the westernmost slopes mafic dikes formed. These events have also been linked to the subduction of the Farallon Plate . Episodes of volcanism continued into the Quaternary . The Sierras are believed to be

8769-539: The monsoon season. Precipitation varies on both annual and seasonal scales in the Sierra Madre. Annual differences in regional climate are associated with the El Niño-Southern Oscillation with El Niño years leading to a wetter climate. Monsoon rains come to the Sierra Madre in June as the high pressure area moves north, leading to wet summer seasons. This causes east winds bringing moisture from

8880-501: The mountains extending from Alaska down to these across western North America. Sierra Tarahumara or Tarahumara is the name for the region of the Sierra Madre beginning at the Durango border and extending north. This name comes from the Tarahumara natives. This is a dramatic landscape of steep mountains formed by a high plateau that has been cut through with canyons including Copper Canyon , larger and, in places, deeper than

8991-652: The mountains may be referred to as the Sierra Huichola. In this area, the Sierra Madre begins to give way to the Basin and Range Province . Subranges of this area include the Sierra de Alica and the Sierra Pajaritos , both in Nayarit, and the Sierra los Huicholes , Sierra de Morones , Sierra Nochistlán, and Sierra Fría extending eastwards into Jalisco, Zacatecas, and Aguascalientes. The mountains act as

9102-417: The mountains. On the east slope of the mountain, daytime upslope winds flow to the crest, where the flow joins westerly winds. The mountains cause convection during the following monsoon season, during which nocturnal winds at low levels in the atmosphere move moisture overnight. Extensive lightning activity occurs during this season. After the high pressure breaks down, wind patterns return to those prior to

9213-634: The native population's opposition to these practices. The range trends from the north to southeast. Canyons cut by the rivers of the wet western slopes exist in addition to those of the northeast slopes, notably the Copper Canyon . The range runs parallel to the Pacific coast of Mexico, from just south of the Arizona-Sonora border southeast through eastern Sonora , western Chihuahua , Sinaloa , Durango , Zacatecas , Nayarit , Jalisco , Aguascalientes to Guanajuato , where it joins with

9324-539: The native species which has been a cause of concern among researchers, along with concerns about the effects of logging on these species. The Sonoran Desert is found in the northwestern foothills at 1,000–2,000 m (3,300–6,600 ft). The Chihuahuan Desert is found to the northeast and east, the Meseta Central matorral and Central Mexican matorral to the southeast, and the Sinaloan dry forests to

9435-401: The range are the major determining factors in the dominant plants. Oaks dominate the lower reaches of the mountains, where stands grow down to about 1,000 m (3,300 ft). Some oak species even continue into the surrounding ecosystems. In the western slopes of the range, cloud forest also occurs, mostly on mid-elevation slopes with little exposure to wind or sun in the southern end of

9546-519: The range contains none of the volcanism that is apparent in the northern range. These formations ended in the Paleocene . Eocene volcanism formed a series of andesitic and rhyolitic formations in the area, with spatial and temporal variations throughout. Most of the gold and silver deposits are also in these rocks. In the Oligocene, ash flows became the predominant deposit of the area, with interbedded lava flows between. These ash flows began

9657-525: The range is also influenced by the same seasonal changes as rainfall. In the dry season dew points are low at high elevations (500 hPa), around −22 °C (−8 °F) in the south of the range, and −24 and −26 °C (−11 and −15 °F) in the north in May. In June, dew points begin to increase from the May levels up to −20 °C (−4 °F) in the north and −16 °C (3 °F) in the south. By July these dew points are at −14 °C (7 °F) throughout

9768-424: The range, but the forests in the mountains vary by elevation and place in the range. This ecoregion is noted for its high biodiversity and large number of endemic species, and for allowing some species to extend their range . The dominant plants vary across the range, and the habitat that they present varies from scattered woodland to both deciduous and coniferous forest. The elevation and latitude in

9879-442: The range. At higher elevations pines begin to grow alongside the oaks, and pines begin to dominate the oaks at higher elevations. At high elevations and in the north, mixed conifer forests become the dominant ecosystem. These forests are composed primarily of pines and firs , which begin to grow at these elevations. There are also grasslands on some mountain tops, surrounded by the forest that occur in those areas. Plants in

9990-405: The range. The range allows higher dew points throughout these periods than the surrounding low lands. This rise in humidity accompanies the monsoon. The mountains create a diverse setting for plants and animals by creating a different set of conditions from the surroundings. The Sierra Madre Occidental pine-oak forests are found at elevations of 1,500–3,000 m (4,900–9,800 ft) throughout

10101-415: The rock that is most visible to be ignimbrites with lava flow layers. The region has a general strike from just west of north to just south of east. Faults in the area tend to be younger than the upper volcanics, excluding those associated with calderas, but do occur in distinct periods. The large faults along the eastern slope have caused the slope to be made up of large escarpments that face into

10212-435: The second series of high magmatism formations. The Mid-Tertiary ignimbrite flare-up formed a series of ignimbrite formations, layered one atop another, that are sometimes broken by lava flows. The ignimbrite formations in this area cover the largest area of any known series, with ten calderas identified in the province. Three of these calderas are in Copper Canyon. The lava has formed a series of mafic rocks that comprise

10323-507: The separation of Aguascalientes from Zacatecas, which explains the shape of a kiss the state has. It bears the name Aguascalientes taken from its largest city and capital also called Aguascalientes. The state mostly has a semi-arid climate , with an exception in the northwestern part of the state with the Sierra Fría mountain range having a temperate highland climate. It also brings large amounts of rain that eventually flows into one of

10434-465: The soil help reduce runoff and soil losses from erosion. Areas that are covered in stone are known as lithosols , and make up most of the remaining surface in the mountains, especially on upper slopes. The last major soil type are vertisols , which are thin mineral-poor soils. Soils at higher elevations experience more leaching , due to increased rainfall. Acidic soils may have lower calcium content, leading to lower plant soil quality . Soils along

10545-716: The state are also of historical and recreational relevance. The municipality of Calvillo has a humid subtropical climate , The largest producer of guavas in Mexico, it attracts some fans of watersports to its reservoirs. The state has a Natural Protected Reserve in the higher mountains called Sierra Fría . Located at a height of 2,500 to 3,000 m (8,202 to 9,843  ft ) above sea level, it comprises oak and pine forests. Its attractions include observing exuberant landscape and wide ravines, in which, there are pumas, lynxes, boar, white-tailed deer, wild turkey, raccoons and many other animals. There are steep-sided cycle paths, camping and picnic areas as well as several hunting clubs. It

10656-583: The state of Aguascalientes on December 10, 1856. On September 16, 1857, on the strength of said constitution, Lic. Jesús Terán Peredo reclaimed his post as constitutional governor of the state. In the independent state, hidrocálidos (people of Aguascalientes) Jesús R. Macías, Manuel Rangel, Augustín Orona, José María Arellano and many other anonymous heroes distinguished themselves in the War of Reform . Silvestre Dorador, Román Morales, Pedro Vital, Alfonso Guerrero Aguilera and Alberto Fuentes Dávila were forerunners of

10767-445: The state's inhabitants is hidrocálido or aguascalentense . Aguascalientes is one of the smallest states of Mexico, either by population or land, being the 27th most populated state and the 29th biggest state by area; nonetheless, it is the 4th state by population density, and its economic development in recent years have located it as the 7th state by Human Development Index and the 8th with highest GDP per capita. Aguascalientes

10878-491: The state, specifically in the municipality of Calvillo. This county is one of the richest counties in Aguascalientes. There are several projects for economic development such as: the Financial District Río San Pedro, a monorail, a suburban train, the construction of the newest and most modern WTC in Mexico, over four shopping malls, two theme parks, two Executive Hotels and one whose qualification

10989-508: The states reservoir. Mean annual temperature of the state is around 17 to 18 °C (62.6 to 64.4 °F) in which May and June are the hottest months with mean temperatures between 22 and 23 °C (71.6 and 73.4 °F). In these months, temperatures can exceed 30 °C (86.0 °F). January is the coldest month, averaging 13 to 14 °C (55.4 to 57.2 °F) with temperatures dropping down to 4 °C (39.2 °F). Frosts frequently occur from November to February. Mean rainfall

11100-607: The terrane is mostly covered by volcanics and sedimentary deposits, so it is only visible where erosion has revealed it. The main subterranes of the Guerrero Composite Terrane that are within the Sierra Madre are the Tahue and Zihuatanejo terranes. Dividing the Guerrero Terrane from the rest of the Sierra Madre terranes is a boundary that is thought to represent the Early Cretaceous Arperos Basin,

11211-584: The west and southwest. These lower elevations are usually graded into by a stand of tropical deciduous forest , which has a large portion of flora made up of flowering plants and legumes . These flowering plants are mostly from the genus Bursera . The ecotone , made up of the tropical deciduous forest, is commonly sparsely populated, sometimes only by small stands of trees. It may be referred to as savanna . Aguascalientes Aguascalientes ( Spanish pronunciation: [ˌaɣwaskaˈljentes] ; lit.   ' Hot Waters ' ), officially

11322-614: The western boundary of the faults in the southern mountains. In the north there is an unknown boundary between the Cortes Terrane and the Guerrero Composite Terrane. Some theorize that this is a section of the Mojave–Sonora Megashear, but this theory is not universally accepted; however, the Megashear is important, and, in fact, is necessary for reconstructions of the opening of the Gulf of California, as of 2003. On

11433-410: The western slope. In fact, the major normal faults tend to diverge around the center of the core and join at either end. Some of these faults may have allowed ignimbrites to erupt from the surface, and so there may be some association between the ignimbrite occurrence and faults; this can be used to find out information about different kinds of basement rock present. There are two faults dividing

11544-470: Was general José Mariano Salas who, on August 5, 1846, announced the reestablishment of federalism , convening a constitutional congress that declared current the constitution of 1824 , but still didn't consider Aguascalientes as a state. Subsequently, on May 18, 1847, amendments were approved to the Constitution of 1824, but neither granted to Aguascalientes the status of a state. That brought about

11655-521: Was historically known for its former railroad and textile industry, as well as wine making , an industry that remains today. During the 2010s Aguascalientes became the fastest-growing state in the country for the whole decade. Aguascalientes is also well known for its San Marcos Fair (Feria Nacional de San Marcos) , the largest fair in Mexico and one of the largest in Latin America. Pre-Columbian era arrowheads, potshards, and rock paintings in

11766-656: Was in order to be in the territory that is presently the state inhabited by Chichimecas, the so-called Guachichiles, that the conquistadors built several forts or presidios. This was a system devised by Martín Enríquez de Almanza following the strategy that had been developing in Spain throughout the Reconquista period. Therefore, in order to protect the Camino de la Plata, which stretched between Zacatecas and Mexico City , three presidios [garrisoned fortifications] founded by

11877-639: Was located on what are now Moctezuma and Victoria Streets, although some historians place it on the Calle 5 de Mayo (once the Camino Real) at Moctezuma, just in front of the Plaza de Armas. This was a fortress whose purpose was the protection of the Valle de los Romero and the road to Zacatecas, entering this way to secure the passage of convoys loaded with silver and other metals. The founding of Aguascalientes as

11988-527: Was native to the Rio Tunal, which forms the headwaters of the San Pedro Mezquital, a Pacific slope river rising near Durango City , Durango , Mexico (Chernoff and Miller 1986). It was taken there only in 1951 and 1961. This article related to a river in Mexico is a stub . You can help Misplaced Pages by expanding it . Sierra Madre Occidental The Sierra Madre Occidental is

12099-453: Was not made official as it did not meet the legal requirements to take effect, since it was necessary that two thirds of each house, both Senators and Representatives , approved the order; furthermore it would be required that two thirds of the legislatures of the states also approved it. The second requirement not being completed, the constitutional congress convened again to develop the centralized constitution that would be known later as

12210-439: Was once a major silver miner and a major source of railroad transportation, the latter due to its strategic location, midway between the three most populous areas, namely Mexico City , Guadalajara , and Monterrey . Today, Mexico's fast growing car industry is especially important in this state. There are two Nissan factories in Aguascalientes which together produce more than half a million cars per year. Infiniti may build

12321-571: Was represented on the field and played their final 2009 match within the Primera División (First Division) tier in the 2009 season after losing 1-0 vs Club América. Under the rules of regulation, Necaxa would not be able to participate in the First Division competition play in the fall 2009 and spring 2010 year. Necaxa's closing spring 2010 league performance had some accomplishments. They had an undefeated record at home throughout

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