Mount Diablo meridian

The Mount Diablo Meridian, established in 1851, is a principal meridian extending north and south from its initial point atop Mount Diablo in California at W 121° 54.845.

Established under the U.S. Public Land Survey System, it is used to describe lands in most of northern California and all of Nevada.

[1] Mount Diablo also marks the baseline at latitude 37°52′54″N.

This Contra Costa County, California–related article is a stub.

You can help Wikipedia by expanding it.