Silver Lake West Basin

Silver Lake West Basin sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. 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.

Trophically, Silver Lake West Basin reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. The lake bottoms out at 42 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 70 acres, Silver Lake West Basin sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Silver Lake West Basin ranks 2 of 10 in Columbia County, putting it in the upper tier of locally monitored lakes.

Eurasian watermilfoil is established at Silver Lake West Basin, which can dampen recreational access and pressure the native plant community. Walleye are documented at Silver Lake West Basin, one of 5 fish species on record for the lake. Public access is available — the lake is on the Wisconsin DNR public-access list. 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.