EPSG:8731Compound
NAD83 / Idaho Central (ftUS) + NAVD88 height (ftUS)
Type
Compound
Unit
—
Area of use
United States (USA) - Idaho - counties of Blaine; Butte; Camas; Cassia; Custer; Gooding; Jerome; Lemhi; Lincoln; Minidoka; Twin Falls.
proj4 definition
+proj=tmerc +lat_0=41.6666666666667 +lon_0=-114 +k=0.999947368 +x_0=500000.0001016 +y_0=0 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs
Well-Known Text (WKT)
COMPD_CS["NAD83 / Idaho Central (ftUS) + NAVD88 height (ftUS)",PROJCS["NAD83 / Idaho Central (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",41.6666666666667],PARAMETER["central_meridian",-114],PARAMETER["scale_factor",0.999947368],PARAMETER["false_easting",1640416.667],PARAMETER["false_northing",0],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2242"]],VERT_CS["NAVD88 height (ftUS)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6360"]],AUTHORITY["EPSG","8731"]]