Eastern New Mexico is a physiographic subregion within the U.S. state of New Mexico. The region is sometimes called the "High Plains", or "Eastern Plains (of New Mexico)", and was historically referred to as part of the "Great American Desert". The region is largely coterminous with the portion of the Llano Estacado in New Mexico. Portions of Eastern New Mexico's elevation extend to over 4,000ft (1,200m). The region is characterized by flat, largely featureless terrain with the exception of the Pecos River valley and the abrupt breaks along the Mescalero Ridge and northern caprock escarpments of the Llano Estacado. The region typically lacks the high relief of central and northern New Mexico, such as that in the Sangre de Cristo and Sandia mountain ranges. The climate is semi-arid with hot summers and is characterized by significant wind and dust storms in the springtime.
Like much of the Llano Estacado region, Eastern New Mexico is largely rural and agricultural, and resembles West Texas in geography, economy, and demographics. The population is sparse as compared to the rest of the country. The region includes portions of the counties of Curry, De Baca, Guadalupe, Lea, Quay, and Roosevelt. It is served by Eastern New Mexico University, a state university located in Portales, and the Blackwater Draw archaeological site is located there.
Ralls is a city in Crosby County, Texas, United States. It was named after John Robinson Ralls, who, with the help of W.E. McLaughlin, laid out the townsite in July 1911. As of the 2020 census, it had a population of 1,665, down from 1,944 at the 2010 census. Ralls is surrounded by productive farmlands that primarily produce cotton and grains, with lesser amounts of soybean, sunflower seed, and vegetables.
The Pecos River originates in north-central New Mexico and flows into Texas, emptying into the Rio Grande. Its headwaters are on the eastern slope of the Sangre de Cristo mountain range in Mora County north of Pecos, New Mexico, at an elevation of over 12,000 feet (3,700 m). The river flows for 926 miles (1,490 km) before reaching the Rio Grande near Del Rio. Its drainage basin encompasses about 44,300 square miles (115,000 km2).
Palo Duro Canyon is a canyon system of the Caprock Escarpment located in the Texas Panhandle near the cities of Amarillo and Canyon. As one of the largest canyons in the United States, it is roughly 25–40 mi (40–64 km) long and has an average width of 6 mi (9.7 km), but reaches a width of 20 mi (32 km) at places. Its depth is around 800 ft (240 m), but in some locations, valley bottom to surrounding hills increases to 1,000 ft (300 m). Palo Duro Canyon has been named "The Grand Canyon of Texas" both for its size and for its dramatic geological features, including the multicolored layers of rock and steep mesa walls, which are similar to those in the Grand Canyon. It is part of Palo Duro Canyon State Park. The State Park had 442,242 visitors in 2022.
The Texas panhandle is a region of the U.S. state of Texas consisting of the northernmost 26 counties in the state. The panhandle is a square-shaped area bordered by New Mexico to the west and Oklahoma to the north and east. It is adjacent to the Oklahoma Panhandle, land which Texas previously claimed. The 1820 Missouri Compromise declared no slavery would be allowed in states admitted from the Louisiana Purchase above 36°30′ north latitude. Texas was annexed in 1845 from still more westerly land. The Compromise of 1850 removed territory north of this line from Texas, and set the border between the Texas Panhandle and the New Mexico Territory at the 103rd meridian west. The eastern border at the 100th meridian west was inherited from the Adams–Onís Treaty of 1819, which defined the border between the United States and New Spain. The Handbook of Texas defines the southern border of Swisher County as the southern boundary of the Texas Panhandle region.
The Llano Estacado, sometimes translated into English as the Staked Plains, is a region in the Southwestern United States that encompasses parts of eastern New Mexico and northwestern Texas. One of the largest mesas or tablelands on the North American continent, the elevation rises from 3,000 feet (900 m) in the southeast to over 5,000 feet (1,500 m) in the northwest, sloping almost uniformly at about 10 feet per mile (2 m/km).
West Texas is a loosely defined region in the U.S. state of Texas, generally encompassing the arid and semiarid lands west of a line drawn between the cities of Wichita Falls, Abilene, and Del Rio.
The South Plains is a region in northwest Texas, United States, consisting of 24 counties.
Mescalero or Mescalero Apache is an Apache tribe of Southern Athabaskan–speaking Native Americans. The tribe is federally recognized as the Mescalero Apache Tribe of the Mescalero Apache Reservation, located in south-central New Mexico.
The Mescalero Ridge forms the western edge of the great Llano Estacado, a vast plateau or tableland in the southwestern United States in New Mexico and Texas. It is the western equivalent of the Caprock Escarpment, which defines the eastern edge of the Llano Estacado.
The High Plains are a subregion of the Great Plains, mainly in the Western United States, but also partly in the Midwest states of Nebraska, Kansas, and South Dakota, generally encompassing the western part of the Great Plains before the region reaches the Rocky Mountains. The High Plains are located in eastern Montana, southeastern Wyoming, southwestern South Dakota, western Nebraska, eastern Colorado, western Kansas, eastern New Mexico, the Oklahoma Panhandle, and the Texas Panhandle. The southern region of the Western High Plains ecology region contains the geological formation known as Llano Estacado which can be seen from a short distance or on satellite maps. From east to west, the High Plains rise in elevation from around 1,800 to 7,000 ft.
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.
The geography of Texas is diverse and large. Occupying about 7% of the total water and land area of the U.S., it is the second largest state after Alaska, and is the southernmost part of the Great Plains, which end in the south against the folded Sierra Madre Oriental of Mexico. Texas is in the South Central United States of America, and is considered to form part of the U.S. South and also part of the U.S. Southwest.
Tucumcari Mountain, once referred to as Tucumcari Peak or Mesa Tucumcari, is a mesa situated just outside Tucumcari, New Mexico.
Southland is an unincorporated community in Garza County, Texas, United States. It lies along the eastern edge of the Llano Estacado on U.S. Route 84, twenty miles northwest of Post.
The Monahans Sandhills State Park is a 3,840-acre (1,550 ha) state park located in the southern Llano Estacado in Ward County and Winkler County, Texas. The closest major town is Monahans, Texas, and the closest limited-access highway ingress is Exit 86 on Interstate 20.
The Comanche Trail, sometimes called the Comanche War Trail or the Comanche Trace, was a travel route in Texas established by the nomadic Comanche and their Kiowa and Kiowa Apache allies. Although called a "trail," the Comanche Trail was actually a network of parallel and branching trails, always running from one source of good water to another. The trail was especially important from the 1830s to 1850s when the Comanche launched large scale raids from Texas into Mexico. Hundreds of warriors annually followed the trail southward in fall and returned with their booty, mostly livestock, in late winter or spring.
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.
Mushaway Peak is a small but conspicuous butte located 4 mi (6.4 km) southeast of Gail in central Borden County, Texas. It is one of the region's most venerable landmarks.
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.
Whiteflat is a ghost town in Motley County, Texas, United States. The population was estimated to be 3 at the 2000 census.
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