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.^[2]

Mount Diablo Memorial Marker

Summit beacon tower atop Mt. Diablo. The initial point marker lies within this tower.

See also

• List of principal and guide meridians and base lines of the United States