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The geographic center of Texas is about 15 miles (24 km) northeast of Brady in northern McCulloch County. Guadalupe Peak, at 8,749 feet (2,666.7 m) above sea level, is the highest point in Texas, the lowest being sea level where Texas meets the Gulf of Mexico. [6]
The Sierra Madre Oriental range to the west separates the Tamaulipan mezquital from the drier Chihuahuan Desert.The Tamaulipan matorral is a transitional ecoregion between the mezquital and the Sierra Madre Oriental pine-oak forests to the west and the Veracruz moist forests to the south.
The average annual temperature in the desert varies from about 13 to 22 °C (55 to 72 °F), depending on elevation and latitude. The mean annual precipitation for the Chihuahuan Desert is 235 mm (9.3 in) with a range of approximately 150–400 mm (6–16 in), although it receives more precipitation than most other warm desert ecoregions. [3]
Texas is approximately bisected by a series of faults that trend southwest to northeast across the state, from the area of Uvalde to Texarkana.South and east of these faults, the surface exposures consist mostly of Cenozoic sandstone and shale strata that grow progressively younger toward the coast, indicative of a regression that has continued from the late Mesozoic to the present.
Although glaciers never extended as far south as Texas, it was during these cold periods that enough water was frozen in polar regions to lower sea levels and the Big Thicket area was dry land well above sea level. Conversely, during the warmer interludes, enough ice melted to increase sea levels and submerge Southeast Texas in the sea.
Devils River State Natural Area is a 37,000-acre (15,000 ha) section of three ecosystems, the Edwards Plateau, the Tamaulipan mezquital and the Chihuahuan Desert.It is located 66 miles (106 km) north of Del Rio, Val Verde County in the U.S. state of Texas. [2]
It has merged with another fire and crossed the state line into Oklahoma, burning more than 1,700 square miles (4,400 square kilometers) and was 15% contained, the Texas A&M Forest Service said ...
The Mojave Desert is the hottest desert in North America, located primarily in southeastern California and Southern Nevada. Its total area is 22,000 sq mi (57,000 km 2). The largest cold desert is the Great Basin Desert, which encompasses much of the northern Basin and Range Province, north of the Mojave Desert.