Then there are the rocks. Joshua Tree’s other signature is its boulders — great piles of pale monzogranite that formed underground about a hundred million years ago, rounded by water seeping along the joints and then laid bare by erosion. They stack into the Wonderland of Rocks, Skull Rock, Hidden Valley, and Jumbo Rocks, and they’ve made Joshua Tree one of the world’s great rock-climbing destinations, with thousands of routes scrambled, bouldered, and roped by climbers from everywhere. Even if you never rope up, the boulders are the desert’s natural architecture.
The town’s namesake is Yucca brevifolia, a tree-sized member of the agave family that grows only in the Mojave and crowds the horizon here with its shaggy, upraised arms. The name comes from Mormon pioneers who crossed the desert in the mid-1800s: the tree’s outstretched branches reminded them of the biblical Joshua raising his arms to the sky, and the name stuck. Each one is slow — decades to mature — and depends entirely on a single pollinator, the yucca moth, which carries its pollen from bloom to bloom and lays its eggs in the flowers, so neither the tree nor the moth can live without the other. Strange, spiky, and unmistakable, the Joshua tree is the silhouette the whole town is named for.
Why People Visit Joshua Tree
People come for the strangeness: trees out of a storybook, boulders made for scrambling, and a night sky so dark the Milky Way throws shadows. Pair the park with the town’s desert-arts scene and you have a high-desert getaway unlike anywhere else in California.
