Gaystock Lake

Gaystock Lake grades an F: every scored parameter (clarity and phosphorus) rates poorly, placing it among the most stressed lakes monitored in Minnesota. clarity and phosphorus rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI above 70 puts Gaystock Lake in hypereutrophic territory: visible blooms are common, and clarity rarely climbs even in early summer. 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. Gaystock Lake ranks 39 of 40 in Carver County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Gaystock Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Gaystock Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. 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.