d3261190_Tree_National_Park_information__Information
[Name] Skull Rock [Miles] 1.5 (loop) [Elevation] level [Information] 
This popular loop trail circles the large boulders either side of the Jumbo Rocks campground, including the distinctively-shaped Skull Rock (which can also be viewed from the main road). Interpretive signs along the way describe the plants and animals of the Mojave Desert.
Joshua Tree National Park information
Information