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For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
Division of Water
Bureau of Water Quality
DNR Contacts for Spider Lake

Manitowish Waters Lakes Association Inc [exit DNR]

Find A Lake > Vilas County > Spider Lake

Spider Lake
Vilas County, 278 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 42 (Mesotrophic) and was determined using Secchi data. For a Two-Story lake, this is considered Excellent.

Spider Lake has been monitored by volunteers since 2006. 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 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
Spider Lake - Deep Hole643261Map2019Details