For the more information about the air resources of the National Park Service, please visit

San Diego County, CA

Anza-Borrego Desert State Park
Anza-Borrego Desert State Park, a National Natural Landmark in San Diego County, CA.

National Natural Landmarks in this county include:

← Back to listing of NNL sites in CA.

← Back to listing of all states and territories.

Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.

Last Updated: June 28, 2012