San Bernardino meridian
The San Bernardino meridian, established in 1852, is one of three Principal meridians in the state of California. Because of the state's shape, three meridian–baseline sets are required for surveys in all parts of the state. The San Bernardino meridian is used for Southern California, and some townships in Arizona are also referenced to it.
The meridian runs North–South from the initial point .
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- "Nevada in Maps: Plats of Nevada State Lands" (BACKGROUND AND MAPS OF THE SAN BERNARDINO AND MT. DIABLO MERIDIANS). University of Nevada, Reno. Retrieved 2012-10-06.
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- Michael A. Duffy, PLS. "Three Monuments, One Initial Point" (PDF) (Published in the September 2002 Issue #135 of the California Surveyor). Principal Meridian Project. Retrieved 2012-10-06.