![]() | Mount DiabloState Park - California |
Mount Diablo is a mountain of the Diablo Range, in Contra Costa County of the eastern San Francisco Bay Area in Northern California. It is south of Clayton and northeast of Danville. It is an isolated upthrust peak of 3,849 feet (1,173 m), visible from most of the San Francisco Bay Area. Mount Diablo appears from many angles to be a double pyramid and has many subsidiary peaks, the largest and closest of which is the other half of the double pyramid, North Peak, nearly as high in elevation at 3,557 feet (1,084 m) and about a mile northeast of the main summit.
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Overview Map of the East Bay Regional Park District in California. Published by the East Bay Regional Park District.

Boundary Map of the Mother Lode BLM Field Office in California. Published by the Bureau of Land Management (BLM).

Vintage 1947 USGS 1:250000 map of San Jose in California. Published by the U.S. Geological Survey (USGS).

Vintage 1957 USGS 1:250000 map of San Francisco in California. Published by the U.S. Geological Survey (USGS).

Vintage 1957 USGS 1:250000 map of Sacramento in California. Published by the U.S. Geological Survey (USGS).

Vintage 1958 USGS 1:250000 map of Santa Rosa in California. Published by the U.S. Geological Survey (USGS).