Lake Sherwood

Lake Sherwood sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI near 42 places Lake Sherwood in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Lake Sherwood reaches 27 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 216 acres, Lake Sherwood fits the Wisconsin median for monitored lakes, with partial shoreline records. Within Adams County's 20 graded lakes, Lake Sherwood ranks 13 — below the local median, though not at the bottom.

Lake Sherwood is on the Wisconsin infested-waters list for zebra mussels — boaters should follow clean-drain-dry protocols when moving gear to or from the lake. Walleye are documented at Lake Sherwood, one of 4 fish species on record for the lake. A documented public access point at Lake Sherwood 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.