The Beach Mountains are located on privately owned land roughly 3 miles (5 km) north of Van Horn in southwestern Culberson County, Texas.

[2] The Beach Mountains occupy a roughly circular area with a diameter of approximately 8 kilometres (5.0 mi), rising 550 metres (1,800 ft) above the surrounding desert.

Other nearby ranges include the Sierra Diablo, Baylor, Apache, Carrizo, Wylie, Eagle, and Van Horn mountains.

The Beach Mountains are erosional remnants of Ordovician and Cambrian sedimentary rocks laid down from 541 to 444 million years ago.

[4] The vegetation of the Beach Mountains is typical of the Chihuahuan Desert with plants such as Yucca, creosote, mesquite, and various cactus species.