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LakeQuality
B

Link Lake

Lake County, MinnesotaLimited DataMesotrophic

Link Lake 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. A maximum depth of 34 ft puts Link Lake in the middle of Minnesota's depth distribution. The lake is compact at 38 acres, with 1.8 miles of shoreline and little volume to buffer nutrient inputs. Link Lake sits at rank 77 of 142 in Lake County, in the lower half of the local distribution.

Link Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Link Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. 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 2023-06-09. 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 10 ft. Trophic State Index: 44.

MetricValueGrade
Water Clarity (Secchi Depth)10 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)44Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth34 ft
Surface Area38.1 acres
Shoreline Length1.8 mi
Littoral Zone45%
Public AccessNo

Water Quality Trend: Stable

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.045 m/yr4

Location

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County Ranking

Ranked #77 of 142 lakes in Lake County

Nearby Lakes in Lake County

DNR Fisheries Survey Summary

3 surveys on file from MN DNR Fisheries. Most recent: 2025-07-31 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
LKW4.670.58 lb
Northern Pike2.001.13 lb
White Sucker1.672.84 lb

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

From the 2025-07-31 survey

Temperature and dissolved oxygen measurements were collected from the deepest basin in Link Lake on July 31st, 2025. This was done to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Lake Whitefish, the most sensitive coldwater species present in this lake. Lake…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Link Lake. 1 report on file.

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Most recent sample: 2023-06-09

Monitoring stations: 1