20250710 09330800 1.0 TRUE Thurston_Contours2ft Two Foot Contours of Thurston County, Washington. This dataset was developed as part of the county's aerial program. It is comprised of color photography from a flight flown in June of 1996.Elevation values:Vertical_Coordinate_System_Definition:Vertical_Datum_Name: NGVD 1929Altitude_System_Definition:Altitude_Resolution: 1.000000Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates