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B

Gaskin Lake

Cook County, MinnesotaLimited DataMesotrophic

Gaskin Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Mesotrophic conditions dominate at Gaskin Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake's 82 ft maximum depth is in the upper tier for Minnesota — deep enough for cold-water fish to find refuge in summer. The lake's 372 acres and 12.9 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Gaskin Lake ranks 65 of 137 in Cook County — solidly in the upper half of the local distribution.

Gaskin Lake has no invasive species recorded in Minnesota state databases as of 2025, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Gaskin 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. 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 2025-06-15. Grade methodology: LakeGrade methodology.

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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 10.8 ft. Trophic State Index: 43.

MetricValueGrade
Water Clarity (Secchi Depth)10.8 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)43Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth82 ft
Surface Area371.88 acres
Shoreline Length12.9 mi
Littoral Zone28%
Public AccessNo

Location

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County Ranking

Ranked #65 of 137 lakes in Cook County

Cleaner Lakes Within 30 Miles

Gaskin Lake holds Grade B. 2 nearby lakes hold higher grades.

Nearby Lakes in Cook County

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: 2025-06-15

Monitoring stations: 1