The Mayacamas Mountains are located in northwestern California in the United States. The mountain range is part of the Northern Inner Coast Ranges, of the California Coast Ranges System.
Mount Saint Helena
The Coast Ranges of California span 400 miles (644 km) from Del Norte or Humboldt County, California, south to Santa Barbara County. The other three coastal California mountain ranges are the Transverse Ranges, Peninsular Ranges and the Klamath Mountains.
Santa Lucia Range
Outer Northern Coast Ranges: King Range meets the sea on the Lost Coast.
Orographic lift of moist air coming off ocean produces clouds along the Santa Lucia Range, of the California Coast Ranges System - NOAA
Monument Peak over Milpitas, California