This project area is the last piece of the puzzle that will connect the Angeles National Forest, the Antelope Valley Poppy Preserve, and the Arthur B. Ripley Woodland State Park. The Portal Ridge Wildlife Preserve (PRWP) encompasses a substantial portion of the Portal Ridge-Liebre Mountain Significant Ecological Area. 

The PRWP and adjacent lands represent a transition zone between three distinct eco-regions: the San Gabriel Mountains, the Tehachapi Foothills and the westernmost portion of the Mojave Desert. A total of thirteen plant communities have been recorded and 110+ wildlife species have been observed.

The Preserve contains previously unprotected transitional plant communities and significant wildlife habitat occurring between the Antelope Valley in the western Mojave Desert and Portal Ridge in Los Angeles County, California. These lands contain habitat for the state-listed threatened Swainson’s hawk, large swaths of Joshua Tree woodland, and pristine desert washes. There are 37 documented special status species, rare plant communities, and rare plants.


Portal Ridge Wildlife Preserve Map