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

Find A Lake > Vilas County > Gunlock Lake

Gunlock Lake
Vilas County, 264 Acres


Water Quality

One measure of a lakes health is the trophic state, which relates to the amount of algae in the water. The average summer trophic state for the last 5 years was 54 (Eutrophic) and was determined using chlorophyll data. For a Shallow Headwater lake, this is considered Good. Shallow lakes are those that do not stratify during the summer months, so the water near the surface may be impacted by resuspension of sediments. If a lake's watershed is less than 4 square miles, the lake is classified as a Headwater Lake.

Gunlock Lake has been monitored by volunteers since 1990. Volunteers monitor water clarity with a black and white Secchi disk. Some also collect water samples, which are sent to the State Lab of Hygiene to be analyzed. 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
Gunlock Lake - Deep Hole -Site 1 - N End643066Map2019Details
Gunlock Lake - Site 210052920Map2019Details
Gunlock Lake - Site 2 - Center Of Sw Bay643434Map2019Details