Little Long Lake

On the LakeGrade rubric, Little Long Lake pulls an A: clarity at 43.5 ft and phosphorus readings still being added 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.

Trophically, Little Long Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. A maximum depth of 30 ft puts Little Long Lake in the middle of Wisconsin's depth distribution. The lake's 101 acres and partial shoreline records put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Among the 35 graded lakes in Forest County, Little Long Lake sits at rank 11, above the county median.

An invasive species record — Chinese Mystery Snail — has been logged at Little Long 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.