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B

Unnamed Lake

Crow Wing County, MinnesotaLimited DataOligotrophic

On the LakeGrade scale Unnamed Lake grades a B, with clarity at 14.1 ft and phosphorus readings still being added placing it above the Minnesota median.

A TSI value of 39 puts Unnamed Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. 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 Crow Wing County's 120 graded lakes, Unnamed Lake ranks 73 — below the local median, though not at the bottom.

No invasive species are currently listed at Unnamed Lake — the lake remains off the Minnesota infested-waters roster. 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. No formal public access is documented at Unnamed Lake — most use is by shoreline residents and their guests. 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 2022-08-31. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 14.1 ft. Trophic State Index: 39.

MetricValueGrade
Water Clarity (Secchi Depth)14.1 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)39Oligotrophic

Low nutrients, clear water, excellent for swimming

Location

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County Ranking

Ranked #73 of 120 lakes in Crow Wing County

Cleaner Lakes Within 30 Miles

Unnamed Lake holds Grade B. 5 nearby lakes hold higher grades.

Nearby Lakes in Crow Wing County

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2022-08-31

Monitoring stations: 2