County Coordinates

County Coordinates have been established on all section corners, witness monuments, and survey control stations. The Washington County Coordinate System is a ground surface Transverse Mercator projection on the North American Datum of 1983 (NAD83/1986). Values are expressed in U.S. Survey Feet. Horizontal Control Reports for each congressional township are available at our service counter. 


             False Northing = 100,003.9833 feet (30481.2751 meters) 

             False Easting = 500,019.9178 feet (152406.3759 meters) 

             Central Meridian = 92 50 00 

             Latitude of Grid Origin = 44 44 45 

             Grid Scale Factor at Central Meridian = 1.000039836799 

             False Height = 835.0 feet