The Peloncillo Mountains form a key wildlife corridor, particularly the Steins Wildlife Corridor near Steins, NM, which is an important migratory pathway for species like the bighorn sheep and Mexican gray wolf. The area is located on the Arizona-New Mexico border, where the Sonoran and Chihuahuan deserts meet, and is characterized by canyons, diverse vegetation, and designated protected lands like the Peloncillo Mountains Wilderness and the Guadalupe Canyon Wilderness Study Area. Interstate 10 cuts through this corridor, creating a significant barrier for wildlife.