Breakfast Lake

Breakfast Lake comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth.

A TSI near 41 places Breakfast Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. The lake bottoms out at 19 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Breakfast Lake is small — 11 acres alongside partial shoreline records — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Breakfast Lake sits at rank 32 of 52 in Bayfield County, in the lower half of the local distribution.

Eurasian watermilfoil is established at Breakfast Lake, which can dampen recreational access and pressure the native plant community. The fishery is bass-led, with 2 documented species across the lake's records. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.