With over 600,000 acres, Anza-Borrego Desert State Park is the largest desert state park in the contiguous United States. 500 miles of dirt roads, two huge wilderness areas (comprising 2/3 of the park) and 110 miles of riding and hiking trails provide visitors with an unparalleled opportunity to experience the wonders of the Colorado Desert.
The park name is derived from a combination of the name of Spanish explorer Juan Bautista de Anza and the Spanish word "borrego," referring to bighorn sheep. The park features washes, wildflowers, palm groves, cacti and sweeping vistas. Visitors may also have the chance to see roadrunners, golden eagles, kit foxes, mule deer and bighorn sheep as well as desert iguanas, chuckwallas and four species of rattlesnake.
Location: Anza-Borrego Desert State Park is located on the eastern side of San Diego County, with portions extending east into Imperial County and north into Riverside County. It is about a two-hour drive from from San Diego, Riverside, and Palm Springs. Many visitors approach from the east or west via Highways S22 and 78. From the coast, these highways descend from the heights of the Peninsular range of mountains with spectacular views of the great bowl of the Colorado Desert. Highway S2 enters the park from the south off of Interstate 8.