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Mancos Shale

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The Mancos Shale or Mancos Group is a Late Cretaceous (Upper Cretaceous) geologic formation of the Western United States .

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86-595: The Mancos Shale was first described by Cross and Purington in 1899 and was named for exposures near the town of Mancos, Colorado . The unit is dominated by mudrock that accumulated in offshore and marine environments of the Cretaceous North American Inland Sea . The Mancos was deposited during the Cenomanian (locally Albian ) through Campanian ages , approximately from 95 million years ago ( Ma ) to 80 Ma. Stratigraphically

172-687: A sister city , as designated by Sister Cities International : Ancient Pueblo people The Ancestral Puebloans , also known as the Anasazi and by the earlier term the Basketmaker-Pueblo culture, were an ancient Native American culture that spanned the present-day Four Corners region of the United States, comprising southeastern Utah , northeastern Arizona , northwestern New Mexico , and southwestern Colorado . They are believed to have developed, at least in part, from

258-492: A business route; an earlier route of US 160 is now County Road J, south of the river and most of the town. The establishment of Mesa Verde National Park also encouraged early growth of Mancos. Several Mancos sites from about the turn of the 20th century are listed on the state or national register of historic places. The first two are on the Colorado State Register of Historic Properties , the remaining are on

344-514: A different cycle unrelated to rainfall. This forced the abandonment of settlements in the more arid or overfarmed locations. Evidence suggests a profound change in religion in this period. Chacoan and other structures constructed originally along astronomical alignments, and thought to have served important ceremonial purposes to the culture, were systematically dismantled. Doorways were sealed with rock and mortar. Kiva walls show marks from great fires set within them, which probably required removal of

430-483: A few generations was probably also due to migrations of people from surrounding areas. Innovations such as pottery, food storage, and agriculture enabled this rapid growth. Over several decades, the Ancestral Puebloan culture spread across the landscape. Ancestral Puebloan culture has been divided into three main areas or branches, based on geographical location: Modern Pueblo oral traditions hold that

516-424: A large system of easy transportation, as timber was not locally available. Analysis of strontium isotopes shows that much of the timber came from distant mountain ranges. Throughout the southwest Ancestral Puebloan region, the inhabitants built complexes in shallow caves and under rock overhangs in canyon walls. Unlike earlier structures and villages atop mesas, this was a regional 13th-century trend of gathering

602-405: A medical clinic, funded through a variety of private and public sources. The nearest general aviation and commercial airport is located southwest of Cortez, approximately 22 miles (35 km) west of Mancos. There are a few private airstrips in the vicinity of Mancos, but these are not open to the public; a former town airfield near Jackson Gulch Reservoir is sometimes still marked on maps. As of

688-465: A range of structures that included small family pit houses , larger structures to house clans , grand pueblos , and cliff-sited dwellings for defense. They had a complex network linking hundreds of communities and population centers across the Colorado Plateau . They held a distinct knowledge of celestial sciences that found form in their architecture. The kiva , a congregational space that

774-482: A single stage. Most houses faced south. Plazas were almost always surrounded by buildings of sealed-off rooms or high walls. There were often four or five stories, with single-story rooms facing the plaza; room blocks were terraced to allow the tallest sections to compose the pueblo's rear edifice. Rooms were often organized into suites, with front rooms larger than rear, interior, and storage rooms or areas. Ceremonial structures known as kivas were built in proportion to

860-662: A smooth, leveled surface in the bedrock or removing vegetation and soil. Large ramps and stairways in the cliff rock connect the roads above the canyon to sites at the bottom. The largest roads, built at the same time as many of the great houses (1000 to 1125 CE), are: the Great North Road, the South Road, the Coyote Canyon Road , the Chacra Face Road , Ahshislepah Road, Mexican Springs Road ,

946-417: A veneer of small sandstone pieces, which were pressed into a layer of binding mud . These surfacing stones were often arranged in distinctive patterns. The Chacoan structures together required the wood of 200,000 conifer trees, mostly hauled – on foot – from mountain ranges up to 70 miles (110 km) away. One of the most notable aspects of Ancestral Puebloan infrastructure

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1032-721: A widespread practice among Ancestral Puebloans. Ancestral Pueblo people in the North American Southwest crafted a unique architecture with planned community spaces. Population centers such as Chaco Canyon (outside Crownpoint, New Mexico ), Mesa Verde (near Cortez, Colorado ), and Bandelier National Monument (near Los Alamos, New Mexico ) have brought renown to the Ancestral Pueblo peoples. They consisted of apartment complexes and structures made of stone, adobe mud, and other local material, or were carved into canyon walls. Developed within these cultures,

1118-997: A winter ( Nordic ) skiing area and various vacation resorts and dude ranches, as well as an elk ranch and other tourist-, sports-, and hunting-related activities are located in and around the town. As is common in Colorado, many government services are provided by special districts, both inside the corporate limits of the town of Mancos and outside in the county. Among these are the Mancos Library District, Mancos Water Conservancy District and Mancos Fire Protection District (which also provides emergency medical services). The nearest hospitals are Southwest Memorial Hospital in Cortez (approximately 18 mi or 29 km west) and Mercy Regional Medical Center in Durango, approximately 34 mi or 55 km east. The town does have

1204-526: Is characterized by fine hatching, and contrasting colors are produced by the use of mineral-based paint on a chalky background. South of the Anasazi territory, in Mogollon settlements, pottery was more often hand-coiled, scraped, and polished, with red to brown coloring. Certain tall cylinders were likely ceremonial vessels, while narrow-necked jars, called ollas , were often used for liquids. Pottery from

1290-411: Is dotted with inventoried and uninventoried archeological sites, including both isolated houses and shelters and small village complexes. Mancos Valley residents were probably among those who withdrew to the cliff dwellings on Mesa Verde , perhaps for defensive purposes, due to climate change , or as part of concentration policy of possible invaders and occupiers of the region. Archaeological sites of

1376-812: Is that Ancestral Puebloans responded to pressure from Numic -speaking peoples moving onto the Colorado Plateau, as well as climate change that resulted in agricultural failures. The archaeological record indicates that for Ancestral Puebloans to adapt to climatic change by changing residences and locations was not unusual. Early Pueblo I Era sites may have housed up to 600 individuals in a few separate but closely spaced settlement clusters. However, they were generally occupied for 30 years or less. Archaeologist Timothy A. Kohler excavated large Pueblo I sites near Dolores, Colorado , and discovered that they were established during periods of above-average rainfall. This allowed crops to be grown without requiring irrigation. At

1462-512: Is the Chaco Road at Chaco Canyon, a system of roads radiating from many great house sites such as Pueblo Bonito, Chetro Ketl, and Una Vida. They led toward small outlier sites and natural features in the canyon and outside. Through satellite images and ground investigations, archaeologists have found eight main roads that together run for more than 180 miles (300 km), and are more than 30 feet (10 m) wide. These were built by excavating into

1548-419: Is the commercial center for east Montezuma County, and was considered at one time as a county seat. It is served by U.S. Highway 160 and State Highway 184 . The Mancos Valley has been settled since at least the 10th century AD, although various severe conditions in the mid to late 13th century saw the area and its multitude of small villages abandoned by the ancient Pueblo people ( Anasazi ). The Mancos area

1634-544: The 2020 census , there were 1,196 people residing in the town. The population density was 1,868.75 inhabitants per square mile (721.53/km ). There were 588 housing units at an average density of 918.75 per square mile (354.73/km ). As of the census of 2010 , there were 1,336 people, 546 households, and 320 families residing in the town. The population density was 2,227.41 inhabitants per square mile (860.01/km ). There were 608 housing units at an average density of 950 units per square mile (370 units/km ). The racial makeup

1720-761: The Colorado Group further east. By 1944, Rankin had concluded that most of the formations of the Colorado Group could be identified as lithostratigraphic members of the Mancos Shale as well. The unit was raised to group rank by C.E. Jamison in 1911, and is sometimes given group rank in New Mexico and Utah as well. Mancos, Colorado Mancos is a statutory town in Montezuma County, Colorado , United States. The population

1806-768: The Mancos River nearby. The two geologists also traced the unit into the Telluride, Colorado area. W.T. Lee had traced the unit north into the Grand Mesa area, defining it as all marine shale between the Dakota and the Mesaverde. It was subsequently traced into Utah and New Mexico. During their work in New Mexico in 1924, J.B. Reeside, Jr., and F.H. Knowlton found that the Mancos Shale could be divided into biostratigraphic layers corresponding closely to formations of

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1892-622: The National Register of Historic Places : Attempts to create a separate Mancos County from the eastern portion of Montezuma County in the mid-20th century failed. Agricultural development, and to a certain extent, tourism, benefited from the Mancos Project of the US Bureau of Reclamation in the 1950s, which created Jackson Reservoir north of the town, today the site of Mancos State Park . This project also supplies water for

1978-689: The Natural Resources Conservation Service , and local irrigation and water companies and districts. The project, nearly complete in 2010, includes replacing many open irrigation ditches with piping to conserve water and prevent salt contamination from infiltration and evaporation of irrigation water. Many of the original irrigation ditches have been determined to be eligible for the National Register of Historic Places , together with various archeological sites. Incorporated in 1894, Mancos town government quickly asserted itself, banning fast riding and driving (of wagons) in town

2064-623: The Oshara tradition , which developed from the Picosa culture . The people and their archaeological culture are often referred to as Anasazi , a term introduced by Alfred V. Kidder from the Navajo word anaasází meaning 'enemy ancestors' ( anaa– 'enemy', -sází 'their ancestors') although Kidder thought it meant 'old people'. Contemporary Puebloans object to the use of this term, with some viewing it as derogatory. The Ancestral Puebloans lived in

2150-505: The San Juan Mountains Province . The Mancos is a diverse unit, with dozens of named subunits in different structural basins that often intertongue with other formations. The subunits and intertonguing formations (in italics) in each basin, in stratigraphic order, are: The Mancos Shale was first named by Charles Whitman Cross and C.W. Purington in 1899, for outcrops near the town of Mancos, Colorado and along

2236-496: The census of 2000, there were 1,119 people, 478 households, and 292 families residing in the town. The population density was 1,938.4 inhabitants per square mile (748.4/km ). There were 524 housing units at an average density of 907.7 units per square mile (350.5 units/km ). The racial makeup of the town was 88.65% White , 2.23% Native American , 0.09% Pacific Islander , 7.86% from other races , and 1.16% from two or more races. Hispanic or Latino of any race were 12.42% of

2322-490: The sandstone landscape. In areas where resistant strata (sedimentary rock layers), such as sandstone or limestone , overlie more easily eroded strata such as shale , rock overhangs formed. The Ancestral Puebloans favored building under such overhangs for shelters and defensive building sites. All areas of the Ancestral Puebloan homeland suffered from periods of drought and erosion from wind and water. Summer rains could be unreliable and produced destructive thunderstorms. While

2408-485: The "Sky City", in New Mexico. Before 900 CE and progressing past the 13th century, the population complexes were major cultural centers. In Chaco Canyon, Chacoan developers quarried sandstone blocks and hauled timber from great distances, assembling 15 major complexes. These ranked as the largest buildings in North America until the late 19th century. Evidence of archaeoastronomy at Chaco has been proposed, with

2494-432: The 12th and 13th centuries. The main reason is unclear. Factors discussed include global or regional climate change, prolonged drought, environmental degradation such as cyclical periods of topsoil erosion or deforestation, hostility from new arrivals, religious or cultural change, and influence from Mesoamerican cultures. Many of these possibilities are supported by archaeological evidence. Current scholarly consensus

2580-736: The American Great Plains , in areas near the Cimarron and Pecos Rivers and in the Galisteo Basin . Terrain and resources within this large region vary greatly. The plateau regions have high elevations ranging from 4,500 to 8,500 feet (1,400 to 2,600 m). Extensive horizontal mesas are capped by sedimentary formations and support woodlands of junipers , pinyon , and ponderosa pines , each favoring different elevations. Wind and water erosion have created steep-walled canyons, and sculpted windows and bridges out of

2666-755: The American Southwest began to leave their historic homes and migrate south. According to archaeologists Patricia Crown and Steadman Upham, the appearance of the bright colors on Salado Polychromes in the 14th century may reflect religious or political alliances on a regional level. Late 14th- and 15th-century pottery from central Arizona, widely traded in the region, has colors and designs which may derive from earlier ware by both Ancestral Pueblo and Mogollon peoples. The Ancestral Puebloans also excelled at rock art , which included carved petroglyphs and painted pictographs . Ancestral Pueblo peoples painted Barrier Canyon Style pictographs in locations where

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2752-484: The Ancestral Puebloans originated from sipapu , where they emerged from the underworld . For unknown ages, they were led by chiefs and guided by spirits as they completed vast migrations throughout the continent of North America. They settled first in the Ancestral Puebloan areas for a few hundred years before moving to their present locations. The Ancestral Puebloans left their established homes in

2838-551: The Chinle, Animas, Jemez , and Taos Rivers. The larger rivers were less directly important to the ancient culture, as smaller streams were more easily diverted or controlled for irrigation. The Ancestral Puebloan culture is perhaps best known for the stone and earth dwellings its people built along cliff walls, particularly during the Pueblo II and Pueblo III eras, from about 900 to 1350 CE in total. The best-preserved examples of

2924-521: The Field Museum in Chicago has been studying a group of Ancestral Puebloan villages that relocated from the canyons to the high mesa tops during the late 13th century. Haas believes that the reason to move so far from water and arable land was a defense against enemies. He asserts that isolated communities relied on raiding for food and supplies, and that internal conflict and warfare became common in

3010-550: The Great Houses were elite, wealthier families. They hosted indoor burials, where gifts were interred with the dead, often including bowls of food and turquoise beads. Over centuries, architectural forms evolved but the complexes kept some core traits, such as their size. They averaged more than 200 rooms each, and some had 700 rooms. Rooms were very large, with higher ceilings than Ancestral Pueblo buildings of earlier periods. They were well-planned: vast sections were built in

3096-764: The La Plata Mountains, a range to the east and northeast, in which the headwaters of the Mancos River originate. Originally laid out as a railroad town, Mancos stretches for approximately a mile along the river and on both sides of it, while newer areas lie north of the old railroad alignment (now U.S. Route 160 , part of the San Juan Skyway and the Old Spanish Trail ). The small main business district lies along Business Route 160 (Grand Avenue), while newer business areas are located along

3182-633: The Mancos River to cropland and pasture in various parts of the Mancos Valley in the late 1870s and 1880s, and by the beginning of the 20th century a large network of irrigation ditches and laterals was operating and continues to operate (with improvements) today. In the mid-2000s, a large project, the Mancos Valley Salinity Control Project , was funded by various sources, including the US Bureau of Reclamation ,

3268-781: The Mancos Shale fills the interval between the Dakota and the Mesaverde Group. The lower marine Mancos Shale conformably intertongues with terrestrial sandstones and mudstones of the Dakota and in its upper part grades into and intertongues with the Mesaverde Group. The shale tongues typically have sharp basal contacts and gradational upper contacts. Whereas in the plains east of the Rocky Mountains certain mappable marine shales are identified as formations (e.g., Skull Creek , Graneros ), correlated deposits within

3354-769: The Mesa Verde and the Bandelier areas. Evidence also suggests that a profound change took place in the Ancestral Pueblo area and areas inhabited by their cultural neighbors, the Mogollon . Historian James W. Loewen agrees with this oral tradition in his book, Lies Across America: What Our Historic Markers and Monuments Get Wrong (1999). No academic consensus exists with the professional archeological and anthropological community on this issue. Environmental stress may have caused changes in social structure, leading to conflict and warfare. Near Kayenta, Arizona , Jonathan Haas of

3440-584: The Montezuma County Board of County Commissioners. Mancos is located in eastern Montezuma County. According to the United States Census Bureau , Mancos has a total area of 0.6 square miles (1.6 km ), all of it recorded as land. The town is located in the Mancos River valley at an elevation of approximately 7,000 feet (2,100 m). The Mancos River was named by Spanish explorers ( Rio de los Mancos - "River of

3526-480: The Pueblo II became more self-contained, decreasing trade and interaction with more distant communities. Southwest farmers developed irrigation techniques appropriate to seasonal rainfall, including soil and water control features such as check dams and terraces. The population of the region continued to be mobile, abandoning settlements and fields under adverse conditions. There was also a drop in water table due to

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3612-596: The Sleeve") perhaps for the way the river, which rises in the La Plata Mountains northeast of Mancos, drains the valley and then flows into the narrow confines of Weber Canyon and Mancos Canyon, southwest of Mesa Verde, where it joins the San Juan River . The town's skyline is dominated by the mass of Mesa Verde 7 miles (11 km) to the west, Menefee Mountain 2 miles (3 km) to the southeast, and

3698-608: The Sun Dagger petroglyph at Fajada Butte a popular example. Many Chacoan buildings may have been aligned to capture the solar and lunar cycles, requiring generations of astronomical observations and centuries of skillfully coordinated construction. The Chacoans abandoned the canyon, probably due to climate change beginning with a 50-year drought starting in 1130. Immense complexes known as "great houses" embodied worship at Chaco. Archaeologists have found musical instruments, jewelry, ceramics, and ceremonial items, indicating people in

3784-509: The West Road, and the shorter Pintado-Chaco Road. Simple structures like berms and walls are sometimes aligned along the roads. Some tracts of the roads lead to natural features such as springs, lakes, mountain tops, and pinnacles. The longest and best-known of these roads is the Great North Road, which originates from different routes close to Pueblo Bonito and Chetro Ketl. These roads converge at Pueblo Alto and from there lead north beyond

3870-456: The age of 18 living with them, 209 (38.3%) were opposite-sex married couples living together, 44 (8.1%) unmarried opposite-sex partnerships , and 3 (0.5%) same-sex married couples or partnerships . 81 (14.8%) had a female householder with no husband present, and 30 (5.5%) had a male householder with no wife present. 226 (14.4%) were non-families. 184 (33.7%) of all households were made up of individuals, and 66 (12.1%) had someone living alone who

3956-415: The amount of winter snowfall varied greatly, the Ancestral Puebloans depended on the snow for most of their water. Snow melt allowed the germination of seeds, both wild and cultivated, in the spring. Where sandstone layers overlay shale, snow melt could accumulate and create seeps and springs, which the Ancestral Puebloans used as water sources. Snow also fed the smaller, more predictable tributaries, such as

4042-496: The ancient Pueblo period include: Control of the area was contested by nomadic Navajo and Ute people for centuries. Spanish friars and military passed through the area as part of the Old Spanish Trail connecting New Mexico and California in the 18th century. The name "Mancos" comes from the Domínguez–Escalante expedition of 1776, though the reason for the name remains unclear (see below). By some unverified accounts,

4128-610: The area of Mancos from 1829 into the 1850s. Part of the original Ute Reservation in 1868, Mancos was part of the San Juan Cession of 1873, and cattle ranchers began settling the Mancos Valley in the 1870s, providing cattle to the mining camps of the San Juan and La Plata ranges. Today, the boundary of the Ute Mountain Indian Reservation is located some 6 miles (10 km) south of town. At

4214-646: The area. The Ancestral Puebloan homeland centers on the Colorado Plateau, but extends from central New Mexico on the east to southern Nevada on the west. Areas of southern Nevada, Utah, and Colorado form a loose northern boundary, while the southern edge is defined by the Colorado and Little Colorado Rivers in Arizona and the Rio Puerco and Rio Grande in New Mexico. Structures and other evidence of Ancestral Puebloan culture have been found extending east onto

4300-403: The average family size was 2.93. In the town, the population was spread out, with 25.8% under the age of 18, 9.0% from 18 to 24, 26.1% from 25 to 44, 25.5% from 45 to 64, and 13.6% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 93.6 males. For every 100 females age 18 and over, there were 89.5 males. The median income for a household in the town

4386-461: The canyon limits. Along roadways were only small, isolated structures. Archaeological interpretations of the Chaco road system are divided between an economic purpose and a symbolic, ideological or religious role. The system was discovered in the late 19th century and excavated in the 1970s. By the late 20th century, aerial and satellite photographs helped in the study. Archaeologists suggested that

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4472-545: The continuation of the Chaco Canyon elite system, which had seemingly collapsed a century earlier. Other researchers instead explain these motifs as part a wider Pueblo style or religion. During the period from 700 to 1130 CE ( Pueblo I and II Eras ), the population grew fast due to consistent and regular rainfall which supported agriculture. Studies of skeletal remains show increased fertility rather than decreased mortality. However, this tenfold population increase over

4558-475: The dismantling of their religious structures was an effort to symbolically undo the changes they believed they caused due to their abuse of their spiritual power, and thus make amends with nature. Most modern Pueblo peoples (whether Keresans , Hopi , or Tanoans ) assert the Ancestral Puebloans did not "vanish", as is commonly portrayed. They say that the people migrated to areas in the southwest with more favorable rainfall and dependable streams. They merged into

4644-676: The distribution of the Mancos are named as tongues of the greater Mancos Formation. Thus, the classification broadly corresponds with the Colorado Group classification of the Great Plains region. As such, various units of the Colorado Group are recognized within the Mancos in those areas where their distinct facies can be recognized. The Mancos occurs in the Basin and Range Province , the Colorado Plateau Province , and

4730-420: The east and the Telluride mining districts to the north, via Dolores. Ranchers in the Mancos Valley continued to provide beef, timber, and other agricultural products to the mining camps. Following this, Latter-day Saints colonists moved into the area and established farms and small communities such as Weber and Cherry Creek. Local farmers and ranchers began constructing irrigation canals to bring water from

4816-600: The elite family whose burials associate them with the site practiced matrilineal succession. Room 33 in Pueblo Bonito, the richest burial ever excavated in the Southwest, served as a crypt for one powerful lineage, traced through the female line, for approximately 330 years. While other Ancestral Pueblo burials have not yet been subjected to the same archaeogenomic testing, the survival of matrilineal descent among contemporary Pueblo peoples suggests that this may have been

4902-574: The forerunners of contemporary Pueblo peoples although specific site to modern group connections are unclear. Three UNESCO World Heritage Sites located in the United States are credited to the Pueblos: Mesa Verde National Park , Chaco Culture National Historical Park and Taos Pueblo . Pueblo , which means "village" and "people" in Spanish, was a term originating with the Spanish explorers who used it to refer to

4988-678: The form of a 300-year period of aridity called the Great Drought. This also led to the collapse of the Tiwanaku civilization around Lake Titicaca in present-day Bolivia. The contemporary Mississippian culture also collapsed during this period. Confirming evidence dated between 1150 and 1350 has been found in excavations of the western regions of the Mississippi Valley , which show long-lasting patterns of warmer, wetter winters and cooler, drier summers. In this later period,

5074-495: The growing populations into close, defensible quarters. There were buildings for housing, defense, and storage. These were built mostly of blocks of hard sandstone, held together and plastered with adobe mortar. Constructions had many similarities, but unique forms due to the unique rock topography. The best-known site is at Mesa Verde, with a large number of well-preserved cliff dwellings. This area included common Pueblo architectural forms, such as kivas, towers, and pit-houses, but

5160-474: The images were protected from the sun yet visible to the public. Designs include human-like forms. The so-called "Holy Ghost panel" in the Horseshoe Canyon is considered to be one of the earliest uses of graphical perspective where the largest figure appears to take on a three-dimensional representation. Recent archaeological evidence has established that in at least one great house, Pueblo Bonito,

5246-534: The last weekend in July, a motorcycle rally over Labor Day weekend, and a balloon festival in September. Much of the farm and ranch land in the Mancos Valley has been subdivided into rural residential and "hobby ranch" properties in recent years, as is happening in much of Montezuma County. Several major subdivisions immediately adjacent to Mancos are in various stages of development and are expected to greatly increase

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5332-537: The main highway. The highly publicized death of a schoolchild in 2003 led to a major reconstruction of US 160 through the town in following years, creating a street pattern which somewhat hampers development. US 160 leads west 18 miles (29 km) to Cortez , the Montezuma county seat , and east 27 miles (43 km) to Durango . Colorado State Highway 184 leads northwest from Mancos 18 miles (29 km) to Dolores . The Mancos River flows from east to west through

5418-466: The massive roof – a task which would require significant effort. Habitations were abandoned, and tribes divided and resettled far. This evidence suggests that the religious structures were abandoned deliberately over time. Pueblo oral history holds that the ancestors had achieved great spiritual power and control over natural forces. They used their power in ways that caused nature to change and caused changes that were never meant to occur. Possibly,

5504-531: The name Mancos refers to the crippled nature of the Spanish explorers' horses after they crossed the San Juan Mountains . According to unverified lore, the horses were rejuvenated by the lush green grass in the Mancos Valley. Somewhere in the town is the point at which the expedition crossed the Rio Mancos on its way to California from Old Mexico. The Old Spanish Trail trade route passed through

5590-411: The next year, as well as building boardwalks. A water system and electrical system were constructed in 1904, followed by a new bridge across the river in 1905 and concrete sidewalks in 1909. However, most side streets of the town remain unpaved. The abandonment of the railroad in the 1950s allowed US 160 to be rerouted to follow the present Railroad Avenue, leaving Grand Avenue, the town's main street, as

5676-471: The number of rooms in a pueblo. A small kiva was built for roughly every 29 rooms. Nine complexes each had a Great Kiva, up to 63 feet (19 m) in diameter. T-shaped doorways and stone lintels marked all Chacoan kivas. Although simple and compound walls were often used, great houses usually had core-and-veneer walls: rubble filled the gap between parallel load-bearing walls of dressed, flat sandstone blocks bound in clay mortar. Walls were covered in

5762-614: The people also adopted design details from other cultures as far away as contemporary Mexico . These buildings were usually multistoried and multipurposed, and surrounded by open plazas and viewsheds . Hundreds to thousands of people lived in these communities. These complexes hosted cultural and civic events and infrastructure that supported a vast outlying region hundreds of miles away linked by transportation roadways. Built well before 1492 CE, these towns and villages were located in defensive positions, for example on high, steep mesas such as at Mesa Verde or present-day Acoma Pueblo , called

5848-594: The people's particular style of dwelling. The Navajo people, who now reside in parts of former Pueblo territory, referred to the ancient people as Anaasází , an exonym meaning "ancestors of our enemies", referring to their competition with the Pueblo peoples. The Navajo now use the term in the sense of referring to "ancient people" or "ancient ones", whereas others ascribe the meaning of Anasazi to "those who are different from our people"; (lit. Ana = "different from us" + asaza = "the old ones"). Hopi people use

5934-469: The pit-house, a common feature in the Basketmaker periods. Ancestral Puebloans are also known for their pottery. Local plainware pottery used for cooking or storage was unpainted gray, either smooth or textured. Pottery used for more formal purposes was often more richly adorned. In the northern portion of the Ancestral Pueblo lands, from about 500 to 1300 CE, the pottery styles commonly had black-painted designs on white or light gray backgrounds. Decoration

6020-407: The population. There were 478 households, out of which 32.0% had children under the age of 18 living with them, 43.7% were married couples living together, 13.2% had a female householder with no husband present, and 38.9% were non-families. 33.7% of all households were made up of individuals, and 13.2% had someone living alone who was 65 years of age or older. The average household size was 2.31 and

6106-470: The road's main purpose was to transport local and exotic goods to and from the canyon. The economic purpose of the Chaco road system is shown by the presence of luxury items at Pueblo Bonito and elsewhere in the canyon. Items such as macaws , turquoise and seashells, which are not part of this environment, and imported vessels distinguished by design, prove that the Chaco traded with distant regions. The widespread use of timber in Chacoan constructions required

6192-573: The same time, nearby areas that suffered significantly drier patterns were abandoned. Ancestral Puebloans attained a cultural "Golden Age" between about 900 and 1150. During this time, generally classed as Pueblo II Era, the climate was relatively warm and rainfall mostly adequate. Communities grew larger and were inhabited for longer. Highly specific local traditions in architecture and pottery emerged, and trade over long distances appears to have been common. Domesticated turkeys appeared. After around 1130, North America had significant climatic change in

6278-467: The southern regions of Ancestral Pueblo lands has bold, black-line decoration and the use of carbon-based colorants. In northern New Mexico, the local black-on-white pottery tradition, the Rio Grande white wares , continued well after 1300 CE. Changes in pottery composition, structure, and decoration are signals of social change in the archaeological record. This is particularly true as the peoples of

6364-715: The space restrictions of these alcoves resulted in far denser populations. Mug House, a typical cliff dwelling of the period, was home to around 100 people who shared 94 small rooms and eight kivas, built right up against each other and sharing many walls. Builders maximized space use and no area was off-limits. Not all the people in the region lived in cliff dwellings; many colonized the canyon rims and slopes in multifamily structures that grew to unprecedented size as populations swelled. Decorative motifs for these sandstone/mortar structures, both cliff dwellings and not, included T-shaped windows and doors. This has been taken by some archaeologists, such as Stephen Lekson (1999), as evidence of

6450-684: The stone dwellings are now protected within United States' national parks , such as Navajo National Monument , Chaco Culture National Historical Park , Mesa Verde National Park , Canyons of the Ancients National Monument , Aztec Ruins National Monument , Bandelier National Monument , Hovenweep National Monument , and Canyon de Chelly National Monument . These villages, called pueblos by Spanish colonists, were accessible only by rope or through rock climbing. These astonishing building achievements had modest beginnings. The first Ancestral Puebloan homes and villages were based on

6536-399: The term Hisatsinom , meaning "ancient people", to describe the Ancestral Puebloans. The Ancestral Puebloans were one of four major prehistoric archaeological traditions recognized in the American Southwest, also known as Oasisamerica . The others are the Mogollon , Hohokam , and Patayan . In relation to neighboring cultures, the Ancestral Puebloans occupied the northeast quadrant of

6622-510: The time it was founded, Mancos served as the primary commercial trading center for eastern Montezuma County, rivaling the town of Dolores to the northwest. At that time, Cortez , now the county seat, was barely a bend in the wagon trail. In the 1890s, Mancos was platted and built as a stop along the Rio Grande Southern Railroad built by Otto Mears - Colorado's southwestern railroad pathfinder, connecting Durango to

6708-635: The town's population by 2015, despite some slowdown due to economic conditions. The Mancos Library District constructed a new public library in 2008, located on a former electrical generating station site south of the Mancos River. Most recent new businesses and business activity are occurring outside the corporate limits of the town, in Montezuma County jurisdiction. In 2007–2010, there have been numerous controversial approvals of new commercial developments, including mail-order firms, sand and gravel pits, ready-mix plants and hot-mix asphalt facilities, by

6794-436: The town, a rural water district, and Mesa Verde National Park. In recent years the growth of Durango has spread to Mancos, making the town something of an art colony . Aramark , the concessionaire for Mesa Verde National Park, has facilities in the town, and there is a specialty aspen sawmill ( Western Excelsior ) and other small industrial enterprises. Numerous events are held in the town each year, including Mancos Days

6880-486: The town, and then flows to the south into Mancos Canyon, on the west and south toe of Mesa Verde. Much of the townsite is located in a Special Flood Hazard Area (the 100-year floodplain )), including most bridges connecting the two parts of the town. 5 miles (8 km) northeast of town is Mancos State Park located on Jackson Gulch Reservoir , built by the Mancos Irrigation Project. Echo Basin,

6966-474: The various Pueblo peoples whose descendants still live in Arizona and New Mexico. This perspective was also presented by early 20th-century anthropologists, including Frank Hamilton Cushing , J. Walter Fewkes , and Alfred V. Kidder . Many modern Pueblo tribes trace their lineage from specific settlements. For example, the San Ildefonso Pueblo people believe that their ancestors lived in both

7052-533: Was $ 25,223, and the median income for a family was $ 32,188. Males had a median income of $ 27,708 versus $ 17,292 for females. The per capita income for the town was $ 13,946. About 11.8% of families and 16.1% of the population were below the poverty line , including 22.5% of those under age 18 and 15.5% of those age 65 or over. Mancos is part of Colorado's Bustang network. It is on the Durango-Grand Junction Outrider line. Mancos has

7138-505: Was 1,141 (85.4%) White , 1 (0.1%) Black or African American , 84 (6.3%) Native American , 9 (0.7%) Asian , 4 (0.3%) Pacific Islander , 56 (4.2%) from other races , and 41 (3.1%) from two or more races. There were 164 (12.3%) of Hispanic or Latino ancestry, of any race. 1,263 people (94.5% of the population) lived in households, 73 (5.5%) lived in non-institutionalized group quarters, and none were institutionalized. There were 546 households, out of which 191 (35.0%) had children under

7224-409: Was 1,196 at the 2020 census , down from 1,336 in 2010 . The town is in southwestern Colorado, at the base of Mesa Verde National Park , and holds the trademark for "Gateway to Mesa Verde". Surrounded by rangeland and mountains, Mancos offers a variety of outdoor recreational activities. The town was founded in 1894, near the site where early Spanish explorers first crossed the Mancos River . It

7310-462: Was 65 years of age or older. The average household size was 2.31 and the average family size was 3.01. In the town, the population was spread out, with 356 (26.6%) under the age of 18, 67 (5.0%) aged 18 to 24, 363 (27.2%) aged 25 to 44, 341 (25.5%) aged 45 to 64, and 209 (15.6%) who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 87.9 males. For every 100 females age 18 and over, there were 81.8 males. As of

7396-533: Was used mostly for ceremonies, was an integral part of the community structure. Archaeologists continue to debate when this distinct culture emerged. The current agreement, based on terminology defined by the Pecos Classification , suggests their emergence around the 12th century BCE, during the archaeologically designated Early Basketmaker II Era . Beginning with the earliest explorations and excavations, researchers identified Ancestral Puebloans as

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