Lower Red Lake : East
Beltrami County, MinnesotaMesotrophic
Lower Red Lake : East carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. 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.
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 86 graded lakes, Lower Red Lake : East ranks 63 — below the local median, though not at the bottom.
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.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 13.1 ft. Phosphorus level: 32 µg/L. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13.1 ft | B |
| Phosphorus | 32 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
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 #63 of 86 lakes in Beltrami County
Nearby Lakes in Beltrami County
More Minnesota Lake Rankings
State Parks Near Lower Red Lake : East
Other Grade B Lakes in Minnesota
Mesotrophic 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