Sabinoso Wilderness in northeastern New Mexico spans 29,855 acres of steep mesas, deep canyons, and semi-arid grassland and woodland shaped by scarce water and layered sedimentary rock. Established in 2009 as part of the National Wilderness Preservation System and enlarged in 2021, it preserves geology dating from the Late Triassic to the Early Cretaceous, including striking Chinle and Entrada formations. The area also holds ephemeral streams, riparian growth, and wildlife such as elk, mule deer, black bear, and wild turkey. Its history includes long human use, traces of ranching and travel routes, and a prolonged struggle to secure legal public access, finally achieved in 2017.