Adams Lake

Adams Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Portage County. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

Trophically, Adams Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. A maximum depth of 44 ft puts Adams Lake in the middle of Wisconsin's depth distribution. Adams Lake is small — 30 acres alongside partial shoreline records — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Adams Lake ranks 9 of 29 in Portage County — solidly in the upper half of the local distribution.

Adams Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. Bass fishing is part of the appeal: the species list runs to 3, anchored by largemouth and/or smallmouth bass. A documented public access point at Adams Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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.