Desert National Wildlife Range 5 - Upper Pictograph Canyon
Part 2 - Lower Pictograph Canyon
The Desert National Wildlife Refuge was established May 20, 1936, and encompasses 1.5 million acres of the diverse Mojave Desert in southern Nevada. It is the largest National Wildlife Refuge in the lower 48 states. The Refuge contains six major mountain ranges, the highest rising from 2,500-foot valleys to nearly 10,000 feet. Annual rainfall ranges from less than four inches on the valley floors to over fifteen inches on the highest peaks.