Desert bighorn sheep establish two desert areas in southwestern Arizona to help preserve the desert bighorn sheep: Cabeza Prieta National Wildlife Refuge and the Kofa National Wildlife Refuge. In 1941, the San Andres National Wildlife Refuge in New Mexico was added. Desert bighorn sheep populations have trended upward since the 1960s when their population was estimated at 6,700-8,100. The upward trend was caused by conservation measures, including habitat preservation. In 1980, desert bighorn sheep populations were estimated at 8,415-9,040. A state-by-state survey was conducted a few years later and estimated the overall US desert bighorn sheep population at 15,980. The 1993 estimate of
Best in the Desert Best in the Desert The Best In The Desert (BITD) Racing Association is an American desert off-road racing association. It is operated by Casey Folks and it is based out of Las Vegas, Nevada. BITD runs the Vegas To Reno, the longest off-road race in the United States, and since 2012 is the sanctioning body of the Mint 400. It has 9 events scheduled for the 2015 season (2015 Schedule). Events are nationally televised on MavTV, its website, and the America One Sports Network. The Best In The Desert has classes of Trick Trucks (aka Trophy Truck), buggies, motorcycles, Quads.