Lake Sharon

On the LakeGrade rubric, Lake Sharon pulls an A: clarity at 29.5 ft and 12 µg/L of phosphorus put it in the top bracket for 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.

A TSI value of 34 puts Lake Sharon in the oligotrophic range, where biological productivity stays low and the water column remains clear. A maximum depth of 30 ft puts Lake Sharon in the middle of Wisconsin's depth distribution. At 47 acres, Lake Sharon sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Lake Sharon ranks 6 of 14 in Marquette County — solidly in the upper half of the local distribution.

Lake Sharon carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. The fishery is bass-led, with 3 documented species across the lake's records. A documented public access point at Lake Sharon makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.