Wisconsin--Columbia CountyThese data layers represent hydrography for Columbia County, Wisconsin in 2018. They are feature classes within the geodatabase, Columbia_Hydro_2018.gdb. The layers included in this geodatabase are 'HYDRO_2018_LINE' and 'HYDRO_2018_POLY'.Geodatabasehttps://geodata.wisc.edu/catalog/3565CC4C-EF00-43A2-94A4-E4EFA2DA2976engPublicInland WatersHydro Columbia County, WI 2018DatasetsWisconsin2018UW-Madison Robinson Map Library