- 3 1/4 inch diameter
- Cast in fine pewter
- Felt backing
- With soft fleece pouch
- In clear-vinyl covered box
Elevation: 3849 ft.
Coordinates: N37° 52' 54" W121° 54' 51"
Location: MT Diablo State Park, CA
Mount Diablo is a dominant topographic feature in northern California. It is significant in the history of surveying because, in 1851, it was established as the initial point of the Mount Diablo Base Line and Meridian for land surveys spanning two-thirds of California and all of Nevada.