Caballo Mountains 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 on land owned by the Bureau of Land Management. The mountains are unusual, and perhaps unique in New Mexico, for the relatively complete geologic history revealed by their rocks. Vehicular access to
Caballo Dam was to compensate for lost capacity in Elephant Butte Lake due to sedimentation. Caballo Dam is high and stands above the Rio Grande. It is long and contains of material. The elevation of the crest is and the average elevation of its reservoir, Caballo Lake, is . The dam has two water outlets; the outlet works have a capacity of , and the main spillway has a capacity of . Caballo Lake is roughly long and stores up to of water. Caballo Dam Caballo Dam is an earthen dam on the Rio Grande about downstream from Truth or Consequences, New