Plumas County Coordinate System

Detailed Projection Parameters
Project Coordinate SystemNorth American 1983, State Plane California, Zone 1 (FIPS 0401)
DatumNorth American Datum of 1983
Ellipsoid Name (Spheroid)Geodetic Reference System 1980 (GRS 80)
Prime MeridianGreenwich
Angular UnitDegree (0.017453292519943295)
Map Projection Name:Lambert Conformal Conic
1st Standard Parallel40.000000
2nd Standard Parallel41.666667
Longitude of Central Meridian-122.000000
Latitude of Projection's Origin39.333333
False Easting6561666.666667
False Northing1640416.666667
Planar Coordinate Information:

Planar Distance UnitsU.S. Survey Feet
Coordinate Encoding MethodCoordinate Pair
Geodetic Model:

Horizontal Datum NameNorth American Datum of 1983
Semi-major Axis6378137.000000
Denominator of Flattening Ratio298.257222


U.S. survey feet may be converted to meters by multiplying U.S. survey feet by the fraction 1200/3937. The common foot is a different unit of measurement, one-third of the Imperial standard yard, which is defined to be 0.9144 meters, exactly. Thus the (Imperial) foot is defined as 0.3048 meters, exactly.