Geologic Terms and Geographic Divisions
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| Division | Province | Section |
| Great Plains. | Missouri Plateau, glaciated. | |
| Missouri Plateau, unglaciated. | ||
| Black Hills. | ||
| High Plains. | ||
| Plains Border. | ||
| Colorado Piedmont. | ||
| Raton. | ||
| Pecos Valley. | ||
| Edwards Plateau. | ||
| Central Texas. | ||
| Interior Highlands | Ozark Plateaus | Springfield-Salem Plateaus. |
| Boston "Mountains." | ||
|
Ouachita ||Arkansas Valley. | ||
| Ouachita Mountains. | ||
| Rocky Mountain System | Southern Rocky Mountains. | |
| Wyoming Basin. | ||
| Middle Rocky Mountains. | ||
| Northern Rocky Mountains. | ||
| Intermontane Plateaus | Columbia Plateau | Walla Walla Plateau. |
| Blue Mountain. | ||
| Payette. | ||
| Snake River Plain. | ||
| Harney. | ||
| Colorado Plateaus | High Plateaus of Utah. | |
| Uinta Basin. | ||
| Canyon Lands. | ||
| Navajo. | ||
| Grand Canyon. | ||
| Datil. | ||
| Basin and Range | Great Basin. | |
| Sonoran Desert. | ||
| Salton Trough. | ||
| Mexican Highland. | ||
| Sacramento. | ||
| Pacific Mountain System | Cascade-Sierra Mountains | Northern Cascade Mountains. |
| Middle Cascade Mountains. | ||
| Southern Cascade Mountains. | ||
| Sierra Nevada. | ||
| Pacific Border | ||
| Puget Trough. | ||
| Olympic Mountains. | ||
| Oregon Coast Range. | ||
| Klamath Mountains. | ||
| California Trough. | ||
| California Coast Ranges. | ||
| Los Angeles Ranges. | ||
| Lower California. |
Source: Information courtesy of the U.S. Geological Survey.
