Eagle Lake

On the scoring rubric Eagle Lake grades a D: clarity at 5.0 ft and phosphorus readings still being added keep it in the lower bracket for Vilas County. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. A maximum depth of 34 ft puts Eagle Lake in the middle of Wisconsin's depth distribution. Eagle Lake covers 575 acres alongside partial shoreline records — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Within the 191 graded lakes of Vilas County, Eagle Lake sits at rank 171, near the bottom of the county list.

Eagle Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. Walleye are documented at Eagle Lake, one of 6 fish species on record for the lake. Public access is available — the lake is on the Wisconsin DNR public-access list. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.