You are here: Resources » Coordinate and Survey February 22, 2012
  Coordinate System

 

Crook County GIS data is stored in the following coordinate and projection format:

County GIS Coordinate System & Geodetic Model

Projection

Lambert Conformal Conic

Coordinate, Distance & Height Units

US survey feet

Datum (Horizontal)

North American Datum of 1983 (NAD83)

Projected coordinate system name

NAD_1983_StatePlane_Oregon_South_FIPS_3602_Feet

Geographic coordinate system name

GCS_North_American_1983

Grid Coordinate System Name

State Plane Coordinate System 1983

SPCS Zone Identifier

3602

Parameters

Standard Parallel (1)

42.333333

Standard Parallel (2)

44.000000

Longitude of Central Meridian

-120.500000

Latitude of Projection Origin

41.666667

False Easting

4921250.000000

False Northing

0.00000

The County Surveyor, City Planning and City Public Works departments use the following coordinate and projection format within the Prineville Urban Growth Boundary:

County Surveyors Coordinate System

Projection

Transverse Mercator

Coord, Dist.& Height Units

3.280839895 (international feet)

Datum (Vertical)

North American Vertical Datum of 1929 (NAVD29)

Spheroid

World Geodetic System of 1984 (WGS84)

Geoid

GEOID99 (Conus)

Parameters

Scale Factor at Central Meridian

1.00004649

Longitude of Central Meridian

-120.86501637222223

Latitude of Projection Origin

44.30126896944444

False Easting

200000.000ift

False Northing

100000.000ift

  

  Public Land Survey System (PLSS)

PLSS is a way of subdividing and describing land in the United States. All lands in the public domain are subject to subdivision by this rectangular system of surveys, which is regulated by the U.S. Department of the Interior, Bureau of Land Management (BLM). Click [here] for more information about the PLSS.

The PLSS typically divides land into 6-mile-square townships, which is the level of information included in the National Atlas. Townships are subdivided into 36 one-mile-square sections. Sections can be further subdivided into quarter sections, quarter-quarter sections, or irregular government lots. Normally, a permanent monument, or marker, is placed at each section corner. Monuments are also placed at quarter-section corners and at other important points, such as the corners of government lots. Today permanent monuments are usually inscribed tablets set on iron rods or in concrete. The original PLSS surveys were often marked by wooden stakes or posts, marked trees, pits, or piles of rock, or other less-permanent markers.

In Crook County every legal description of a taxlot is broken down by a 13 character code. For example:

14,15,05,00,00000 = Township, Range, Section, Quarter Quarter, Taxlot Number.

Click [here] to open a PDF diagram of our PLSS grid.

Information on Plats can be found [here].

  

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