Grant County, WashingtonData from Washington State Department of Ecology. Downloaded from web page http://www.ecy.wa.gov/services/gis/data/data.htm on 3/28/2016. This GIS layer contains bathymetric contours of selected freshwater lakes in Grant County, Washington during the mid-seventies. The bathymetric contours were digitized from maps contained in a series of seven documents: Reconnaissance Data on Lakes in Washington, Water-Supply Bulletin 43, Volume 1 through 7 by the United States Geological Survey in cooperation with the Washington State Department of Ecology.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/50a80c23228e4f738c3afc047091ea1a_0engGrant County Open Data PortalPublicLake Bathymetry Contours [Washington (State)--Grant County]Web servicesWashington (State)--Grant CountyWashington (State)Last Modified: 2019-01-14