Lower Red Lake : East
Beltrami County, MinnesotaEutrophic
Lower Red Lake : East earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. With clarity and phosphorus scored, the sub-grades cluster within a letter of each other, pointing to stable conditions rather than one specific stressor.
A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. 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. Lower Red Lake : East ranks 80 of 92 in Beltrami County — at the lower end of the locally monitored distribution.
No invasive species are currently listed at Lower Red Lake : East — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Lower Red Lake : East, 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.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-10-14. Grade methodology: LakeGrade methodology.
Track Lower Red Lake : East
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 4 ft. Phosphorus level: 32 µg/L. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4 ft | D |
| Phosphorus | 32 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.114 m/yr | 6 |
| Phosphorus | ↑ Improving | -0.76 µg/L/yr | 6 |
Location
County Ranking
Ranked #80 of 92 lakes in Beltrami County
Cleaner Lakes Within 30 Miles
Lower Red Lake : East holds Grade C. 5 nearby lakes hold higher grades.
- AIsland LakeBeltrami County · mi · Two grade letters higher (C → A)
- AShemahgun LakeBeltrami County · mi · Two grade letters higher (C → A)
- AGreen LakeBeltrami County · mi · Two grade letters higher (C → A)
- ASquaw Smith LakeBeltrami County · mi · Two grade letters higher (C → A)
- AHeart LakeBeltrami County · mi · Two grade letters higher (C → A)
Nearby Lakes in Beltrami County
More Minnesota Lake Rankings
State Parks Near Lower Red Lake : East
Other Grade C Lakes in Minnesota
Eutrophic Lakes in Minnesota
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-10-14
Monitoring stations: 1