WDFW's GoHunt mapping software--which datum?

[fremont]

I'm trying to figure out what map datum is used for the GoHunt maps.  I'm guessing NAD 1983 but cannot confirm through my searching.

Anybody know?

[Curly]

I'm trying to figure out what map datum is used for the GoHunt maps.  I'm guessing NAD 1983 but cannot confirm through my searching.

Anybody know?

My guess is NAVD 88  (for vertical)

Horiz datum is likely NAD 83 since it is the official State Plane Coordinate system.

[timberghost72]

Most of the state GIS data uses NAD 1983 HARN StatePlane datum.

Here is an example of GMU spatial metadata from WDFW

 
Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: NAD 1983 HARN StatePlane Washington South FIPS 4602 FeetLambert_Conformal_Conic: Standard_Parallel: 45.83333333333334Standard_Parallel: 47.33333333333334Longitude_of_Central_Meridian: -120.5Latitude_of_Projection_Origin: 45.33333333333334False_Easting: 1640416.666666667False_Northing: 0.0Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pairCoordinate_Representation: Abscissa_Resolution: 0.0003125Ordinate_Resolution: 0.0003125Planar_Distance_Units: foot_usGeodetic_Model: Horizontal_Datum_Name: D North American 1983 HARNEllipsoid_Name: GRS 1980Semi-major_Axis: 6378137.0Denominator_of_Flattening_Ratio: 298.257222101


You can find spatial data here http://geography.wa.gov/data-products-services/data/data-catalog

[fremont]

Per WDFW, it's WGS84.  (Same as Bing & Google maps.)  I've always thought that WGS84 = NAD83, but I'm told that, although the differences are very small, they are not the same.

Thank you for the help.