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Coordinate System

Deschutes County Geographic Information Systems data is created and maintained in State Plane Oregon South projection. Our county engineers and surveyors use a different coordinate system designed by the Deschutes County Road Department, Survey Division, which we refer to as the County Grid.
 

State Plane Oregon South (Lambert Conformal Conic)


This coordinate system is used by Geographic Information Systems professionals in Deschutes County. All of Deschutes County's Geographic Information Systems data is stored in this coordinate system.

Projection:  Lambert
Units:  3.280839895 (international feet)
Datum:  NAD83
Spheroid:  GRS80
Parameters:
1st Parallel:  42 20 00
2nd Parallel:  44 00 00
Central Meridian:  -120 30 00 
Latitude of Origin:  41 40 00
False Easting:  1500000
False Northing:  0
 

County Grid (Transverse Mercator)


This coordinate system is used by engineers and surveyors in Deschutes County.

Projection:  Transverse
Units:  3.280839895 (international feet)
Datum:  NAD83
Spheroid:  GRS80
Parameters
Scale Factor at Central Meridian:  1.00016
Longitude of Central Meridian:  -121 17 00
Latitude of Origin:  43 00 00
False Easting:  3,300,000
False Northing:  0
 


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