The Mojave Trails National Monument spans 1.6 million acres of federal lands, including more than 350,000 acres of already Congressionally-designated wilderness, managed by the Bureau of Land Management between Barstow and Needles, California. It is a stunning mosaic of rugged mountain ranges, ancient lava flows, and spectacular sand dunes. The monument contains the longest remaining undeveloped stretch of Route 66 and some of the best preserved sites from the World War II-era Desert Training Center. Connecting the Mojave National Preserve with Joshua Tree National Park, the Mojave Trails National Monument ensures the biological connectivity of this landscape while preserving traditional uses such hunting and off-highway vehicle recreation.