Resource provided by UW-Madison Robinson Map Library. This data group represents Hydro (Polygon) for Trempealeau County, Wisconsin in 2014 and includes the layers ‘Trempealeau_HydroPoly_2014’, ‘WaterRegion’.This polygon data layer represents hydrography for Trempealeau County, Wisconsin in 2014. It is a feature class within the geodatabase, Trempealeau_HydroPoly_2014.gdb. [Water features such as Lakes, Reservoirs, Wide Streams and River, and Unspecified Open Water features.] WaterRegion