"The Castle Mountains range and Johua tree (Yucca brevifolia) woodland, in the Eastern Mojave Desert and within Castle Mountains National Monument (est. 2016), San Bernardino County, California." by David Lamfrom , by-sa/3.0
Official visitor map of Mojave National Preserve (NPRES) in California. Published by the National Park Service (NPS).
U.S. National Park Service (NPS), June 2018