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Upper St. Croix Lake, Douglas County

Upper St. Croix Lake, Douglas County
Photo by Jennifer Filbert

Contact information
For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
Division of Water
Bureau of Water Quality
DNR Contacts for Upper Saint Croix Lake

Find A Lake > Douglas County > Upper Saint Croix Lake

Upper Saint Croix Lake
Douglas County, 828 Acres


Upper Saint Croix Lake was monitored by volunteers between 1996 and 2017. Volunteers monitor water clarity with a black and white Secchi disk. Volunteers are the source of the majority of Wisconsin's lake water quality data, and their dedication is greatly appreciated. Additional monitoring has been done through projects funded in part by DNR Lake Grants and Aquatic Invasive Species Grants. Reports and graphs featuring data collected by volunteers, DNR staff and others can be viewed below.

Water Quality Reports and Graphs

Station NameStation IDMapMax YearReports
Upper Red Trib To #0103 - Upper Saint Croix Lake North Site163377Map1995Details
Upper Saint Croix Lake - Deep Hole163129Map1997Details
Upper Saint Croix Lake - South Site163376Map2017Details