Decision Support Maps

Alluvial Fan Background Maps (Click on the Title for Map)

Areas Potentially Containing Alluvial Fans

Land Ownership

Private and Public Land Ownership

Percent Slope with Faults

Development Projection 2040

Fire Threat to People

Erosion Potential After Fires


Digital Flood Insurance Rate Maps (DFIRMs) (Click on the County Name for Map)

Imperial County

Kern County

Los Angeles County

Orange County

Riverside County East

Riverside County West

San Bernardino County North

San Bernardino County Southeast

San Bernardino County Southwest

San Diego County

San Luis Obispo County

Santa Barbara County

Ventura County