The desert located in Southern California is the Mojave Desert. It spans across several counties including San Bernardino, Riverside, and Los Angeles. The Mojave is known for its unique plant and animal species, such as the Joshua tree and the desert tortoise. The region's climate is characterized by hot summers and mild winters, with low annual precipitation. This desert is also home to several national parks and protected areas, including Joshua Tree National Park and Death Valley National Park, making it a popular destination for tourists and outdoor enthusiasts. Its diverse landscape features mountains, valleys, and unique geological formations.