The Physical Setting of Texas Government Texas Regions Texas Features Texas Rivers Texas Cities Texas Overview High Plains Northern Prairies Plains Mt Basins Edwards Plateau Coastal Plains Big Bend South Texas Plain 1 Texas Regions from the Atlas of Texas Blackland Prairie High Plains East Cross Timbers Low Plains Mountain Basin Edwards Plateau West CT Post Grand Oak Piney Prairie Belt Woods Coastal Prairie Llano Basin Texas South Plain Texas Features Texas Features Cap Rock Escarpment Guadalupe Mtns Davis Mts Balcones Esc Galveston Chisos Mts Matagorta Penn Matagorta Isl Mustang St Joseph Padre Island Texas Rainfall Patterns Long term Averages 32 18 56 8 2 Texas River Basins Texas Rivers Canadian Red River Sulphur Sabine Pecos Neches Trinity Rio Grande San Jacinto Brazos Guadalupe Colorado San Antonio Nueces Texas Lakes Caddo Lake 3 Major Aquifers Ogallala Coastal Edwards Texas Cities Amarillo Wichita Falls Sherman Dennison Texarkana Lubbock Abiline El Paso Pecos Odessa Longview Dallas Ft Worth Waco Tyler Midland San Angelo Kileen Temple Austin Bryan Houston Beaumont Pt Arthur Alpine Galveston Texas City San Antonio Brazoria Victoria Laredo McAllen EdinburgMission Corpus Christi Brownsville Harlington San Benito Subsidence 1987 1995 4