Current Lake Marsh

On the LakeGrade rubric Current Lake Marsh fails the cutoffs — a TSI of 73 and persistent algal pressure put it in the bottom tier. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI above 70 puts Current Lake Marsh 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. Current Lake Marsh ranks 2 of 2 in Murray County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Current Lake Marsh — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Current Lake Marsh, 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. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.