The Guadalupe Mountains are a mountain range located in western Texas and southeastern New Mexico. The range includes the highest summit in Texas, Guadalupe Peak, and the "signature peak" of West Texas, El Capitan.

The range lies southeast of the Sacramento Mountains and east of Brokeoff Mountains, extends north-northwest and northeast from Guadalupe Peak in Texas into New Mexico, 16km (10 miles) southwest of Carlsbad. It is bounded on the north by Four Mile Canyon; on the east by the valley of the Pecos River; and on the west by Piñon Creek, Big Dog Canyon, Valley Canyon, Middle Dog Canyon and West Dog Canyon.

For detail on the area's geology, see Delaware Basin.

See also

• Guadalupe Mountains National Park

Mountain ranges of New Mexico | Mountain ranges of Texas | Landmarks in Texas