Two people stand on a grassy hillside in the King Range Wilderness, overlooking the Pacific Ocean.
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Mtn. Bike Rider on the Bizz Johnson Trail King Range National Conservation Area Poppy Three Pump Jacks, Midway-Sunset Oilfield
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Meridians in California 


On the upper left corner or Northwest (NW) corner of California is the Humboldt Meridian.  Most of northern, and all the central, and part of southern California is the Mount Diablo Meridian.  The Southern portion of California is the San Bernardino Meridian.

Map of Califonria showing meridians - Humboldt Meridian in northwestern California, Mount Diablo Meridian in Central California, and San Diego Meridian in Southern California.

Any questions, please contact Viola Hunting at vhunting@blm.gov or 916-978-4400