Henry Lake

Henry Lake grades an F: water clarity, phosphorus, and chlorophyll-a all rate poorly, placing it among the most stressed lakes monitored in Minnesota. 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.

A TSI above 70 puts Henry 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. Within the 55 graded lakes of Stearns County, Henry Lake sits at rank 54, near the bottom of the county list.

No invasive species are currently listed at Henry Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Henry Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Henry Lake — most use is by shoreline residents and their guests. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.