Rush Lake

On the LakeGrade scale Rush Lake grades a B, with clarity readings still being added and 20 µg/L of phosphorus placing it above the Minnesota median.

The lake sits in the mesotrophic zone — the band where most well-managed Minnesota lakes fall. 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 Beltrami County's 92 graded lakes, Rush Lake ranks 52 — below the local median, though not at the bottom.

No invasive species are currently listed at Rush Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Rush 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.