Reisner Lake

Reisner Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Florence County. 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 39 puts Reisner Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake is compact at 96 acres, with partial shoreline records and little volume to buffer nutrient inputs. Reisner Lake ranks 19 of 39 in Florence County — solidly in the upper half of the local distribution.

An invasive species record — Purple Loosestrife — has been logged at Reisner Lake; Wisconsin DNR maintains the official infested-waters list. The fishery is bass-led, with 3 documented species across the lake's records. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.