Caballo Mountains gambelii" and "Callipepla squamata"), doves ("Zenaida macroura" and "Zenaida asiatica"). Common reptiles include Collared lizards ("Crotaphytus collaris"), Roundtail Horned Lizard ("Phrynosoma modestum"), Striped whipsnake ("Masticophis taeniatus"), and Western diamondback rattlesnake ("Crotalus atrox"). Caballo Mountains The Caballo Mountains, (Spanish: "horse") are a mountain range located in Sierra and Doña Ana Counties, New Mexico, United States. The range is located east of the Rio Grande and Caballo Lake, and west of the Jornada del Muerto; the south of the range extends into northwest Doña Ana County. The nearest towns are Truth or Consequences and Hatch. Most of the Caballo Mountains are located
Caballo Mountains another unconformity. Above that is the Love Ranch Formation of conglomerate, mudstone and sandstone, which was deposited in the Paleocene to early Eocene. During the Eocene, a wave of arc volcanism was felt across southern New Mexico. In the Caballo Mountains, this can be seen in the Palm Park Formation, a thick layer of andesitic or tuffaceous mudstones, sandstones, and breccia. Next is the Bell Top Formation, which consists of rhyolite, basalt flows, and tuffaceous sandstones. In the southern part of the Caballo Mountains, there are remnants of a region wide sheet of flood basalts and andesite, which was laid