Unnamed Lake
Pope County, MinnesotaLimited DataEutrophic
Unnamed Lake earns a D — measurements through 2022 show persistent nutrient pressure that limits clarity through the summer.
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. Within Pope County's 25 graded lakes, Unnamed Lake ranks 15 — below the local median, though not at the bottom.
Unnamed Lake has no invasive species recorded in Minnesota state databases as of 2022, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Unnamed Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-08-23. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 3.6 ft. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.6 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #15 of 25 lakes in Pope County
Cleaner Lakes Within 30 Miles
Unnamed Lake holds Grade D. 3 nearby lakes hold higher grades.
Nearby Lakes in Pope County
More Minnesota Lake Rankings
State Parks Near Unnamed Lake
Other Grade D 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: 2022-08-23
Monitoring stations: 2