Caprock Escarpment

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Caprock Escarpment
Caprock Escarpment Garza County Texas 2010.jpg
Caprock Escarpment, Garza County, Texas
LlanoEstacadoShadedRelief.jpg
The Caprock Escarpment marking the edge of the Llano Estacado is clearly visible in this shaded relief image. The escarpment can be seen on the eastern edge of the Llano, running roughly in a north–south line through the middle of the Panhandle of Texas.
Coordinates: 34°54′35″N104°04′08″W / 34.90972°N 104.06889°W / 34.90972; -104.06889
Location New Mexico and Texas, United States
Age Quaternary
Geology Caliche
Elevation502 m (1,647 ft)
Northwest escarpment of the Llano Estacado overlooking Alamogordo Valley of Quay and Guadalupe Counties, New Mexico. Northwest Escarpment Llano Estacado 2003.jpg
Northwest escarpment of the Llano Estacado overlooking Alamogordo Valley of Quay and Guadalupe Counties, New Mexico.

The Caprock Escarpment is a term used in West Texas and Eastern New Mexico to describe the geographical transition point between the level High Plains of the Llano Estacado and the surrounding rolling terrain. [1]

Contents

In Texas, the escarpment stretches around 200 mi (320 km) south-southwest from the northeast corner of the Texas Panhandle near the Oklahoma border. The escarpment is especially notable, from north to south, in Briscoe, Floyd, Motley, Crosby, Dickens, Garza, and Borden Counties.

In New Mexico, a prominent escarpment exists along the northernmost extension of the Llano Estacado, especially to the south of San Jon and Tucumcari, both in Quay County, New Mexico. Along the western edge of the Llano Estacado, the portion of the escarpment that stretches from Caprock to Maljamar, New Mexico, is called the Mescalero Ridge. [2] [3]

Description

The escarpment is made of caliche—a layer of calcium carbonate that resists erosion. [1] In some places, the escarpment rises around 1,000 ft (300 m) above the plains to the east. The escarpment's features formed by erosion from rivers and streams, creating arroyos and highly diverse terrain, including the large Palo Duro Canyon southeast of Amarillo, Texas. [1] One will notice the change in elevation of several hundred feet while crossing the Caprock Escarpment on Interstate 40 between Adrian, Texas and San Jon, New Mexico.

The overall slight upslope, and in some areas, convergent, terrain of the Caprock is implicated in altering local weather and climate, such as enhancing precipitation and promoting thunderstorm initiation and organization. [4] [5]

Parks

Caprock Canyons State Park and Trailway, located near Quitaque, opened in 1982. A 65-mi (105-km) trail was developed within the park in 1992. Along the trail is Clarity Tunnel, home to a large colony of Mexican free-tailed bats.

See also

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<span class="mw-page-title-main">Prairie Dog Town Fork Red River</span> River in the United States

Prairie Dog Town Fork Red River is a sandy-braided stream about 120 mi (193 km) long, formed at the confluence of Palo Duro Creek and Tierra Blanca Creek, about 1.8 mi (2.9 km) northeast of Canyon in Randall County, Texas, and flowing east-southeastward to the Red River about 1 mi (2 km) east of the 100th meridian, 8 mi (13 km) south-southwest of Hollis, Oklahoma.

<span class="mw-page-title-main">Blanco Canyon</span>

Blanco Canyon is a canyon located in the U.S. state of Texas. Eroded by the White River into the Caprock Escarpment on the east side of the Llano Estacado, the canyon runs for 34 miles (55 km) in a southeasterly direction, gradually widening from its beginning in southwestern Floyd County to 10 miles (16 km) across at its mouth in southeastern Crosby County. It also gradually deepens from 50 feet (15 m) at its beginning to 300 to 500 feet at its mouth. One side canyon, 5-mile long Crawfish Canyon, was cut by Crawfish Creek as it feeds into the White River from the west.

<span class="mw-page-title-main">Mulberry Creek (Red River tributary)</span> River

Mulberry Creek is an intermittent stream about 58 mi (93 km) long, formed as a shallow draw on the high plains of the Llano Estacado in Armstrong County, Texas, and flowing southeastward to join the Prairie Dog Town Fork Red River in Hall County, Texas.

<span class="mw-page-title-main">Tierra Blanca Creek</span> River in the United States

Tierra Blanca Creek is an ephemeral stream about 75 mi (121 km) long, heading in Curry County, New Mexico, flowing east-northeast across northern portions of the Llano Estacado to join Palo Duro Creek to form the Prairie Dog Town Fork Red River southeast of Amarillo, Texas. Overall, Tierra Blanca Creek descends 1,050 ft (320 m) from its headwaters in Eastern New Mexico to its confluence with Palo Duro Creek at the head of Palo Duro Canyon.

<span class="mw-page-title-main">Yellow House Draw</span> River in the United States of America

Yellow House Draw is an ephemeral watercourse about 236 km (147 mi) long, heading about 20 km (12 mi) southwest of Melrose, New Mexico, and tending generally east-southeastward across the Llano Estacado to the city of Lubbock, where it joins Blackwater Draw to form Yellow House Canyon at the head of the North Fork Double Mountain Fork Brazos River. It stretches across Roosevelt, Curry, Bailey, Cochran, Hockley, and Lubbock Counties of eastern New Mexico and West Texas, and drains an area of 9,790 km2 (3,780 sq mi).

<span class="mw-page-title-main">Double Mountain Fork Brazos River</span> River in Texas, United States

The Double Mountain Fork Brazos River is an ephemeral, sandy-braided stream about 170 mi (280 km) long, heading on the Llano Estacado of West Texas about 11.5 mi (18.5 km) southeast of Tahoka, Texas, flowing east-northeast across the western Rolling Plains to join the Salt Fork, forming the Brazos River about 18 mi (29 km) west-northwest of Haskell, Texas.

<span class="mw-page-title-main">Salt Fork Brazos River</span> River

The Salt Fork Brazos River is a braided, highly intermittent stream about 150 mi (240 km) long, heading along the edge of the Llano Estacado about 26 mi (42 km) east-southeast of Lubbock, Texas. From its source, it flows generally east-southeastward to join the Double Mountain Fork to form the Brazos River about 18 mi (29 km) west-northwest of Haskell, Texas. The Salt Fork stretches across portions of Crosby, Garza, Kent, and Stonewall counties of West Texas.

<span class="mw-page-title-main">Little Red River (Texas)</span> River

The Little Red River is an intermittent stream about 30 mi (48 km) long, formed at the confluence of the North Prong and South Prong Little Red River in Briscoe County, Texas, and flowing east-northeastward to join the Prairie Dog Town Fork Red River in Hall County, Texas.

<span class="mw-page-title-main">McDonald Creek (Salt Fork Brazos River tributary)</span> River in the United States

McDonald Creek is an intermittent stream, about 25 mi (40 km) long, heading about 10 mi (16 km) south-southwest of Crosbyton, Texas, and trending generally southeast to join the Salt Fork Brazos River near the community of Verbena, Texas.

References

  1. 1 2 3 Carroll, H.B. "Caprock". Handbook of Texas Online. Retrieved March 1, 2013.
  2. Price, A.P. 1977. Mescalero Sandhills of Cochran and Yoakum Counties, Texas. Master's thesis, Texas Tech University, Lubbock, 253 pp.
  3. Henderson, D. 2006. An Introduction to the Mescalero Sands Ecosystem. Master's thesis, Texas A&M University, 42 pp.
  4. Walter, Kevin R.; C. C. Weiss; A. H.P. Swift (25 Oct 2005). "The Moisture Route of Palo Duro Canyon". 11th Conference on Mesoscale Processes / 32nd Conference on Radar Meteorology. Albuquerque, NM: American Meteorological Society.
  5. Marshall, Timothy P. (1980). Topographic Influences on Amarillo Radar Echo Climatology. M.S. thesis. Lubbock, TX: Texas Tech University. hdl:2346/22163.