* Gulf Coastal Plains: The Gulf Coastal Plains is in southeastern Texas and stretches inland for about 200 miles (320 kilometers). It is a low, flat region with rich soils and abundant water resources. The Gulf Coastal Plains is home to Houston, the largest city in Texas.
* Piney Woods: The Piney Woods is a region in East Texas that is characterized by its pine forests. The region is also home to several lakes and rivers. The Piney Woods is a popular destination for outdoor recreation, such as hiking, camping, and fishing.
* Blackland Prairies: The Blackland Prairies region is located in central Texas. The region is characterized by its rich, black soils, which are ideal for growing crops. The Blackland Prairies region is also home to several major cities, including Austin, Dallas, and Waco.
* Edwards Plateau: The Edwards Plateau is a region in Central Texas that is characterized by its limestone hills and canyons. The Edwards Plateau is home to the Texas Hill Country, a popular tourist destination. The Texas Hill Country is known for its beautiful scenery, including rolling hills, wildflowers, and clear rivers.
* Trans-Pecos: The Trans-Pecos is a region in West Texas that is characterized by its desert landscapes. The Trans-Pecos is home to several national parks and monuments, including Big Bend National Park and Guadalupe Mountains National Park. The Trans-Pecos is also home to several military installations, including Fort Bliss and Fort Hood.
Rivers and Lakes
* Rio Grande: The Rio Grande is the longest river in Texas. It forms the border between Texas and Mexico. The Rio Grande is a vital water resource for both Texas and Mexico.
* Colorado River: The Colorado River is the second-longest river in Texas. It flows from Colorado into the Gulf of Mexico. The Colorado River is a vital water resource for Texas, providing drinking water, irrigation, and hydroelectric power.
* Brazos River: The Brazos River is the third-longest river in Texas. It flows from New Mexico into the Gulf of Mexico. The Brazos River is a vital water resource for Texas, providing drinking water, irrigation, and hydroelectric power.
* Lake Travis: Lake Travis is the largest lake in Texas. It is located on the Colorado River west of Austin. Lake Travis is a popular recreation destination, offering swimming, boating, fishing, and hiking.
* Lake Texoma: Lake Texoma is the second-largest lake in Texas. It is located on the Red River between Texas and Oklahoma. Lake Texoma is a popular recreation destination, offering swimming, boating, fishing, and hiking.
Mountains and Canyons
* Guadalupe Peak: Guadalupe Peak is the highest point in Texas. It is located in the Guadalupe Mountains National Park in West Texas. Guadalupe Peak is 8,751 feet (2,667 meters) above sea level.
* Davis Mountains: The Davis Mountains are a mountain range in West Texas. The Davis Mountains are home to several national parks and monuments, including Big Bend National Park and Davis Mountains State Park. The Davis Mountains are a popular destination for hiking, camping, and fishing.
* Palo Duro Canyon: Palo Duro Canyon is the second-largest canyon in the United States. It is located in the Texas Panhandle. Palo Duro Canyon is a popular destination for hiking, camping, and horseback riding.
