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For information on Lakes in Wisconsin, contact:
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DNR Contacts for Twin Bear Lake

Delta Area Lakes Association [exit DNR]

Iron River Lakes Association [exit DNR]

Find A Lake > Bayfield County > Twin Bear Lake

Twin Bear Lake


Twin Bear Lake has been monitored by volunteers since 1993. 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. Twin Bear Lake is also part of DNR's long term trend monitoring project. 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
Twin Bear Lake - Deep Hole043127Map2024Details