the District. It is here where Congress designated the Sandia Mountain Wilderness (37,200 acres) in 1978. The Cibola's Sandia Ranger District also includes the Manzanita Mountains, which stretch south, between the Sandia and the Manzano Mountains. The Manzano Mountains are managed by the Cibola National Forest's Mountainair Ranger District. The Mountainair Ranger District manages national forestland in Torrance, northwestern Lincoln, and eastern Valencia counties, which are in central New Mexico. Within the Mountainair District are the Gallinas Mountains and the Manzano Mountains. Congress designated the Manzano Wilderness in 1978. The Mount Taylor Ranger District manages land in northern Cibola, southern McKinley, and western Sandoval counties in western New Mexico. Mount Taylor and Zuni Mountains are within the Mount Taylor District. Overseeing approximately 800,000 acres, the Magdalena Ranger District is the largest of the Cibola National Forest's four mountain districts. The Cibola’s Magdalena District manages land in south central New Mexico in western Socorro, northeastern Catron, and northern Sierra counties. The Bear Mountains, Datil Mountains, Magdalena Mountains and San Mateo Mountains are all within the Magdalena District. There are two Wilderness areas in this District - the Apache Kid (44,626 acres) and the Withington (19,000 acres) Wilderness areas, both of which are in the San Mateo Mountains. In addition to the designated Wilderness, the Magdalena Ranger District has 205,972 acres of Inventoried Roadless Areas. The Magdalena Ranger District's officers are stationed in the Village of Magdalena. The District has roots in the Gila Forest Reserve, created by President William McKinley in 1899, making the U.S. Forest Service the “oldest continuous business in Magdalena.” Ecology Cibola biomes range from Chihuahuan desert to short grass prairie to piñon-juniper to sub-alpine spruce and fir. The region also boasts wildlife as diverse as the biomes they inhabit. Animals represented include: black bear cougar prairie dog mule deer pronghorn black rosy finch goshawk Mexican spotted owl wild turkey Due to the Rio Grande, a large variety of migrating waterfowl and other birds follow the river's flyway during the spring and fall. Birds of prey are also present using the updrafts and thermals along the north-south alignment of the central mountains for their migration. The ‘sky islands’ region of the Cibola hosts more than 200 rare plant and animal species, with more than 30 species listed as endangered or threatened by New Mexico or the federal government. The region is home to more bird and mammal species