Gunlock Lake

On the LakeGrade scale Gunlock Lake grades a B, with clarity at 9.0 ft and 19 µg/L of phosphorus placing it above the Wisconsin median. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.

Mesotrophic conditions dominate at Gunlock Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Gunlock Lake sits at rank 106 of 191 in Vilas County, in the lower half of the local distribution.

No invasive species are currently listed at Gunlock Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Gunlock Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.