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LakeQuality
D

Kawishi Lake

Lake County, MinnesotaLimited DataEutrophic

Kawishi Lake earns a D — measurements through 2024 show persistent nutrient pressure that limits clarity through the summer. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. Kawishi Lake is a shallow lake at 12 ft maximum depth, which means it warms quickly, mixes constantly, and amplifies nutrient inputs. At 372 acres, Kawishi Lake fits the Minnesota median for monitored lakes, with 11.0 miles of shoreline. Kawishi Lake ranks 141 of 142 in Lake County — at the lower end of the locally monitored distribution.

Kawishi Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. Walleye are documented at Kawishi Lake, one of 8 fish species on record for the lake. Public access is available — the lake is on the Minnesota PCA public-access list. 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 2024-07-30. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 4.5 ft. Trophic State Index: 55.

MetricValueGrade
Water Clarity (Secchi Depth)4.5 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)55Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth12 ft
Surface Area371.65 acres
Shoreline Length11 mi
Littoral Zone100%
Public AccessYes

Fish Species

Click a species to see all Minnesota and Wisconsin lakes where it is found.

→ Best fishing times for Kawishi Lake (14-day solunar calendar)

→ Is it safe to eat fish from Kawishi Lake? (mercury & PFAS guide)

Kawishi Lake fishing regulations (limits, seasons, special rules)

Location

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County Ranking

Ranked #141 of 142 lakes in Lake County

Nearby Lakes in Lake County

DNR Fisheries Survey Summary

10 surveys on file from MN DNR Fisheries. Most recent: 2024-09-09 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluntnose Minnow39.17
BNS29.25
Yellow Perch16.230.25 lb
White Sucker9.802.1 lb
Spottail Shiner8.88
Walleye3.731.26 lb

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

Length Distributions

Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.

Yellow Perch

29 fish · 511 in · 2024-09-09
950trophy 12567891011

White Sucker

79 fish · 721 in · 2024-09-09
16808101214161820

Walleye

85 fish · 726 in · 2024-09-09
19100trophy 248101214161820222426

From the 2024-09-09 survey

Kawishiwi Lake is a 372-acre lake with dark colored water and a maximum depth of twelve feet that sits on the edge of the Boundary Waters Canoe Area Wilderness. The access is located at the end of Forest Service 354 and consists of a gravel shoreline where multiple canoes can easily be launched. There is also a Forest…

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 Kawishi Lake. 3 reports 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: 2024-07-30

Monitoring stations: 1