Rivers, Streams, and Creeks of Nez Perce County


Projection Information:

The map projection used is Transverse Mercator.

Projection parameters:
Transverse Mercator
Scale factor at central meridian: 0.999933
Longitude of central meridian: -115.750000
Latitude of projection origin: 41.666667
False easting: 2624666.666667
False northing: 0.000000

Planar coordinates are encoded using coordinate pair.
Abscissae (x-coordinates) are specified to the nearest 0.000328.
Ordinates (y-coordinates) are specified to the nearest 0.000328.
Planar coordinates are specified in survey feet.

The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.

Vertical coordinate system definition:
Altitude system definition:
Altitude resolution: 0.000100
Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates