Resource provided by UW-Madison Robinson Map Library. This data represents hydrography for Portage County, Wisconsin in 2024 and includes the layers 'PORTAGE_HYDRO_2023_POLY' and 'PORTAGE_HYDRO_2023_LINE.'Hydro Polygon: [This data contains polygons representing lakes, ponds, rivers and streams that are at least 15 feet wide. Attributes include Name, Navigibility (if known), alternate name, and a link to WiDNR bathymetric maps.]Hydro Line: [This data contains lines representing lakes, ponds, rivers and streams. Attributes include Name, Navigibility (if known), alternate name.]