Gaslyn Lake

Gaslyn Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.

At a TSI of 51, Gaslyn Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. Gaslyn Lake is a shallow lake at 12 ft maximum depth, which means it warms quickly, mixes constantly, and amplifies nutrient inputs. At 161 acres, Gaslyn Lake fits the Wisconsin median for monitored lakes, with partial shoreline records. Within Burnett County's 57 graded lakes, Gaslyn Lake ranks 37 — below the local median, though not at the bottom.

An invasive species record — Chinese Mystery Snail — has been logged at Gaslyn Lake; Wisconsin DNR maintains the official infested-waters list. Bass fishing is part of the appeal: the species list runs to 3, anchored by largemouth and/or smallmouth bass. Multiple sampling years from the Wisconsin DNR Citizen Lake Monitoring Network back the grade, so the letter should hold steady absent a major watershed shift.