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Cutler Formation

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The Cutler Formation or Cutler Group is a rock unit that is exposed across the U.S. states of Arizona , northwest New Mexico , southeast Utah and southwest Colorado . It was laid down in the Early Permian during the Wolfcampian epoch .

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33-649: At its type area north of Ouray, Colorado , the Cutler Formation consists of over 1,000 feet (300 m) of bright red sandstone , siltstone , and conglomerate beds alternating with reddish mudstone or clay -rich limestone . Further west, the unit shows great lithological diversity, and can be divided into easily recognizable mappable subunits. Here the Cutler is raised from formation to group rank and its subunits are themselves designated as formations. The unit in its type area remains at formation rank and

66-708: A chronostratigraphic rather than a lithostratigraphic distinction, and by a subtle angular unconformity that was not easily recognized in the field. This led to abandonment of the Elephant Canyon Formation and designation of all beds between the Honaker Trail Formation and the Cedar Mesa Sandstone as simply the lower Cutler beds. These also include beds previously assigned to the Halgaito Formation. In

99-465: A boon to the local economy as well, with hotels and restaurants that previously closed through the winter months now staying open to accommodate climbers. There are five developed hot springs in Ouray and nearby Ridgway. These include thermal pools and vapor caves. Ouray Hot Springs is the largest facility with numerous pools. There are numerous waterfalls along the road from Durango to Ouray, and within

132-514: A mile of the Uncompahgre Gorge . The water is supplied by a sprinkler system developed and maintained by a volunteer organization and supported by donations from local businesses, gear manufacturers and climbers. The Ouray Ice Park is free and attracts climbers from around the world. The annual Ice Festival is a weekend-long extravaganza of contests, exhibitions and instruction with many of the world's top ice climbers. Ice climbing has been

165-777: Is often described as the "undifferentiated Cutler". The formation overlies the Hermosa Group and is in turn overlain by either the Dolores Formation (near its type area) or the Moenkopi Formation (further west). It is laterally equivalent to the Abo Formation of central New Mexico, to which it seamlessly transitions in the Jemez Mountains . The formation has been dated to Wolfcampian near its type area. At this point in geologic time,

198-530: Is only 10 miles (16 km) northeast of Telluride , but due to the severity of the landscape, the drive is about 50 miles (80 km). Ouray is connected to Silverton and then Durango to the south by Red Mountain Pass which crests at just over 11,000 feet (3,400 m). The drive along the Uncompahgre River and over the pass is nicknamed the "Million Dollar Highway", although the exact origin of

231-458: The 2020 census . The Ouray Post Office has the ZIP Code 81427. Located at an elevation of 7,792 feet (2,375 m), Ouray's climate, natural alpine environment , and scenery have earned it the nickname " Switzerland of America". Established by miners seeking silver and gold in the surrounding mountains, the town once boasted more horses and mules than people. Prospectors arrived in

264-790: The Chama Basin of New Mexico, the Cutler Group has been divided into two formations: A sandstone unit resembling the De Chelly Sandstone is present above the Arroyo del Agua Formation in the southernmost part of the basin, but in this region it is assigned to the Yeso Group . Cutler outcrops are found in these geologic locations in Arizona , Colorado , New Mexico and Utah . There is no designated type locality for

297-709: The National Register of Historic Places individually, while the Ouray County Courthouse , St. Elmo Hotel , St. Joseph's Miners' Hospital (housing the Ouray County Historical Society and Museum), Western Hotel , and Wright's Opera House are within the historic district. Ouray is located in the San Juan Mountains of southwestern Colorado . It is about 40 miles (64 km) south of Montrose . It

330-748: The San Juan Mountains . Ouray has also become a popular destination for motorcyclists, as it marks the beginning of the Million Dollar Highway. This stretch of highway connects Ouray to its neighboring cities of Silverton and Durango. The Million Dollar Highway is frequently regarded as one of the most beautiful roads in Colorado, but is also considered one of the most dangerous due to its sharp turns, steep ledges, and lack of guard rails. Destinations include Yankee Boy Basin, Engineer Mountain, and Black Bear Road . Recording artist (and later Ouray mayor) C. W. McCall helped make Black Bear famous in

363-518: The census of 2010, there were 1,000 people, 457 households, and 283 families residing in the city. The population density was 1,250 inhabitants per square mile (480/km ). There were 800 housing units at an average density of 1,000 units per square mile (390 units/km ). The racial makeup of the city was 95.2% White , 0.1% (1) African American , 0.4% (4) Native American , 0.8% (8) Asian , 1.9% (19) from other races , and 1.6% (16) from two or more races. Hispanic or Latino of any race were 8.2% of

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396-509: The Cutler. It was named by Charles Whitman Cross and Ernest Howe in 1905 after Cutler Creek, which enters Uncompahgre River about 4 miles north of Ouray, Colorado. They found that nonfossiliferous red beds provisionally assigned to the Dolores Formation were separated from overlying fossiliferous Triassic beds by a significant angular unconformity. The lower beds were tentatively identified as Permian beds, and were removed from

429-585: The Dolores Formation to the newly designated Cutler Formation. Baker and Reeside revised Cross and Howe's work in 1929, tracing the Cutler across the Colorado Plateau and dividing the formation into the Halgaito Tongue , Cedar Mesa Sandstone Member, Organ Rock Tongue , and White Rim Sandstone Member. They also confirmed Cross and Howe's dating of the formation to the Permian. The Cutler

462-651: The Rico Mountains of southwestern Colorado that were transitional from the marine Hermosa Formation and the overlying continental Cutler Formation. These contained marine fossils suggesting the beds covered the Pennsylvanian to Permian time interval. The name came into wide use for transitional beds further west as petroleum geologists mapped the Colorado Plateau. However, the definition of the Rico

495-622: The Uncompahgre Uplift of the Ancestral Rocky Mountains was still rising along an arc from eastern Utah through southwestern Colorado and into northern New Mexico. Tremendous quantities of sediment were eroded off the uplift and accumulated at its southwest margin to form the undifferentiated Cutler, which in some places reached a thickness of 8,000 feet (2,400 m). Further west, eolian (wind), fluvial (river) and marine influences became important and produced

528-451: The afternoons in July and August sometimes resulting in intense, though short lived, rainfall. Autumn is cool and mostly clear with occasional rain. Winters are long and cold—though seldom extremely so—with considerable snowfall. Spring is generally cool with early spring often bringing the largest snowfalls; late spring into early summer (mid-May through late June) is mild to warm and is usually

561-690: The area in 1875. In 1877, William Weston and George Barber found the Gertrude and Una gold veins in Imogene Basin, six miles south southwest of Ouray. Thomas Walsh acquired the two veins and all the open ground nearby. In 1897, Walsh opened the Camp Bird Mine , adding a twenty-stamp mill in 1898, and a forty-stamp mill in 1899. The mine produced almost 200,000 ounces of gold by 1902, when Walsh sold out to Camp Bird, Ltd. By 1916, Camp Bird, Ltd., had produced over one million ounces of gold. At

594-428: The area. His song "Black Bear Road" borrowed the phrase, "you don't have to be crazy to drive this road, but it helps", from a sign once posted somewhere at the beginning of Black Bear Pass. Ouray is a popular destination for ice climbing. The world's first ice climbing park, expanding on previously popular natural falls, consists of dozens of frozen waterfalls from 80 to 200 feet (61 m) high farmed along more than

627-430: The city limits there are two waterfalls within easy reach. Cascade Falls is a short, 1/4 mile hike accessible from a parking lot on 8th Avenue. Box Canyon Falls is at the southwest edge of Ouray. Ouray was originally a mining town. The largest and most famous mine is the Camp Bird Mine , the second-largest gold mine in Colorado, established by Thomas Walsh in 1896. Even though there was an operation permit filed in 2007,

660-452: The driest time of year. The Köppen climate classification for Ouray is Dfb . The majority of Ouray's economy is based on tourism . Ouray bills itself as the "Switzerland of America" because of its setting at the narrow head of a valley, enclosed on three and a half sides by steep mountains. Much of the town tourism is focused on ice climbing, mountain biking, hiking, trail running and off-roading in four-wheel drive (4WD) expeditions into

693-634: The height of the mining, Ouray had more than 30 active mines. After changing its name together with the county's name several times, the town was incorporated on October 2, 1876, named after Chief Ouray of the Utes , a Native American tribe . By 1877 Ouray had grown to over 1,000 in population and was named county seat of the newly formed Ouray County on March 8, 1877. The Denver & Rio Grande Railway arrived in Ouray on December 21, 1887. It continued until automobile and truck traffic caused ridership to drop. The last regularly scheduled passenger train

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726-463: The lithological variety of the Cutler Group. The undifferentiated Cutler consists of alluvial fan deposits in a narrow belt very close to the Uncompahgre Uplift, and fluvial deposits further out. The coarsest exposures are near Gateway, Colorado , within a mile of the thrust fault defining the southwest margin of the ancient Uncompahgre Uplift. Some granite boulders in these deposits are up to 25 feet (7.6 m) in diameter. However, thrusting along

759-532: The mine still remains inactive. During its lifespan, the mine produced about 1.5 million troy ounces of gold, and 4 million troy ounces of silver, from 1896 to 1990. In 1995 the old milling equipment "The Crusher" was disassembled and sold to a smaller mine located in Mongolia where it operated for about two years. The vacant mine can be seen on the steep two-wheel drive road leading to the four-wheel drive roads to Yankee Boy Basin and Imogene Pass . As of

792-488: The name is disputed. Yankee Boy Basin is located a few miles from the town. According to the United States Census Bureau , the city has a total area of 0.8 square miles (2.1 km ), all of it land. Ouray is located at an elevation of 7,792 feet (2,375 m), and experiences four distinct seasons. Summers are warm in the day and mild to cool at night with brief thunderstorms often occurring in

825-568: The north. [REDACTED] US 550 is the only paved road into or out of Ouray. U.S. 550 begins roughly 40 miles (64 km) north of Ouray in Montrose . It runs south to Bernalillo, New Mexico , via Durango, Colorado , and Aztec, New Mexico . The stretch of U.S. 550 that runs south from Ouray to Silverton is known as the "Million Dollar Highway". Chama Basin Too Many Requests If you report this error to

858-443: The population. There were 457 households, out of which 26.5% had children under the age of 18 living with them, 48.1% were married couples living together, 7.7% had a female householder with no husband present, 6.1% had a male householder with no wife present, and 38.1% were non-families. 32.4% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older. The average household size

891-634: The publication. Its subunits, therefore, are variously called formations or members. Subunits on the Colorado Plateau are: Beds formerly assigned to the Elephant Canyon Formation , the Halgaito Shale , or the Rico Formation are included in the lower Cutler beds. The stratigraphy of the lower Cutler beds has long been controversial. Charles Whitman Cross and A.C. Spencer applied the name Rico Formation to beds in

924-441: The uplift margin had ceased by the time the youngest beds were deposited. Further west, the formation transitions to thin (less than 1 foot (0.30 m)) sandstone and conglomerate beds, in which the grains become finer towards the top of the bed (a fining upward sequence). These are interpreted as recording individual sheet flood events. The Cutler has been placed at either formation or group stratigraphic rank, depending on

957-451: Was $ 36,094, and the median income for a family was $ 45,313. Males had a median income of $ 35,217 versus $ 27,083 for females. The per capita income for the city was $ 23,127. About 9.3% of families and 8.1% of the population were below the poverty line , including 7.1% of those under age 18 and 6.4% of those age 65 or over. The nearest airport with scheduled service is Montrose Regional Airport , located approximately 40 miles (64 km) to

990-400: Was 2.19 and the average family size was 2.76. In the city, the population was spread out, with 21.7% under the age of 18, 28.1% from 18 to 44, 33.2% from 45 to 64, and 17.0% who were 65 years of age or older. The median age was 45.1 years. For every 100 females, there were 101.6 males. For every 100 females age 18 and over, there were 101.8 males. The median income for a household in the city

1023-520: Was September 14, 1930. The line between Ouray and Ridgway was abandoned on March 21, 1953. In 1986, Bill Fries, a.k.a. C. W. McCall , was elected mayor, and served for six years. The entirety of Main Street is registered as a National Historic District with most buildings dating from the late nineteenth century. The Beaumont Hotel and the Ouray City Hall and Walsh Library are listed on

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1056-538: Was traced through the Jemez Mountains and found to be laterally equivalent to the Abo Formation by Wood and Northrop in 1946. In 1958, Wengerd and Matheny raised the formation to group rank. Ouray, Colorado Ouray ( / ˈ jʊər eɪ / YOOR -ay ) is a home rule municipality that is the county seat of Ouray County, Colorado , United States . The city population was 898 as of

1089-414: Was vague and it was mapped inconsistently in the region. This led Don Baars to recommend abandoning the Rico in favor of placing the upper, Permian beds in his new Elephant Canyon Formation and reassigning the lower, Pennsylvanian, beds to the underlying Honaker Trail Formation . However, other geologists objected to this because the contact was defined by the fusulinids present in the beds, which made this

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