Peloncillo Mountains Wilderness Trails Professional Review and Guide
"It’s neither one of the most expansive nor among the highest of southeast Arizona’s numerous mountain ranges, but from the standpoint of biodiversity, the Peloncillo (“bald hills” in Spanish) Mountains along the Arizona-New Mexico border are no less important. Peregrine falcons nest on its sheer cliff faces, and Gould’s turkey, scaled quail, whitetailed deer, badger, porcupine, harvest mouse, white-throated wood rat, mule deer, gray fox, desert bighorn, mountain lion, pallid bat, Western kingbird, black-tailed gnatcatcher, burrowing owl, horned lark, red-tailed hawk, rock wren, mountain lion, bobcat, cactus wren, Say’s phoebe, ash-throated flycatcher, white-winged dove, desert cottontail, and a host of reptiles and amphibians inhabit the wilderness.
In 1986 the Arizona Game and Fish Department released 31 desert bighorn sheep in the Peloncillo Wilderness. By 1994, when 15 additional bighorns were released, the original herd had increased to approximately 55 animals. This trail guide covers an area that has no maintained trails."