Cottonwood Trails Closed
Trail access remains closed to Cottonwood Spring Oasis, Lost Palms Oasis, and Mastodon Peak. More »
Pinto Basin Road Under Construction; Expect 30+ Minute Travel Delays
Visitors should expect 30+ minute waits when heading north and sound bound on the Pinto Basin Road. Due to construction activity around Cottonwood Visitor Center, additional waits of 30 minutes may be in place when leaving the visitor center parking lot. More »
Deteriorating conditions of Black Rock Canyon Road
The road leading to Black Rock campground has deep potholes, is deeply rutted, and can be difficult to negotiate, especially in large vehicles. Please drive with caution.
Except for the occasional spectacular wildflower bloom, the desert appears to the casual visitor as an unchanging landscape. In reality it is a dynamic, constantly shifting ecosystem shaped primarily by wind and rain.
Geologic processes are continually at work as well, but are so slow that we only notice their presence in the occasional earthquake. While wildfire and human caused factors such as air pollution and off-road vehicle use can change the landscape very quickly.
The park is a “living laboratory” that helps us understand how environmental factors have shaped this desert ecosystem and how they may be changing it at present. It also shows the sharp contrast between a less-disturbed ecosystem and the completely human-shaped one in the urban areas nearby.
Park staff carefully monitor the effects of changes in air quality, and the effects of nitrogen deposition, wildfires, and invasion by nonnative plant species. Their watchful eyes can alert managers and the public to threats to desert resources in time for useful action.
Did You Know?
With nearly 750 species of vascular plants, Joshua Tree is renowned for its plant diversity. No wonder that when the area was first proposed for preservation in the early 1930s, the name suggested was Desert Plants National Park. More...