Page "Southwestern United States" Paragraph 24

Landscape features of the core Southwestern areas usually include mountains, mesas, high broad basins, plateaus, desert lands, and some plains.

The High Plains region of the Great Plains are also located in the American Southwest.

Eastern Colorado, Eastern New Mexico, and West Texas all have high plains, and rolling land.

The entire Southwestern region features semi-arid to arid terrain.

The far eastern part of the Southwest in Texas, for example the Texas Hill Country, consists of dry, tall and rugged rocky hills of limestone and granite.

South Texas and the Rio Grande Valley is mostly flat with many places consisting of scrub and bare topsoil, much like the deserts further west.

Buttes are also located all over the southwestern states.

Utah tends to have the most natural buttes, but they do form as far east as some parts of Central Texas.