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LakeQuality
B

Sixth Crow Wing Lake

Hubbard County, MinnesotaMesotrophic

Sixth Crow Wing Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth. 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.

A TSI near 47 places Sixth Crow Wing Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. The lake bottoms out at 40 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 346 acres, Sixth Crow Wing Lake fits the Minnesota median for monitored lakes, with 3.8 miles of shoreline. Within the 77 graded lakes of Hubbard County, Sixth Crow Wing Lake sits at rank 68, near the bottom of the county list.

No invasive species are currently listed at Sixth Crow Wing Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye alongside the lake's other 14 documented species — a notable draw for Minnesota anglers. A documented public access point at Sixth Crow Wing Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The lake has a partial ice record — 6 observed ice-outs, centered near Apr 15. 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 2024-09-16. Grade methodology: LakeGrade methodology.

Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Moderate clarity, visible to about 8.9 ft. Phosphorus level: 21 µg/L. Trophic State Index: 47.

MetricValueGrade
Water Clarity (Secchi Depth)8.9 ftC
Phosphorus21 µg/LB
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)47Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth40 ft
Average Depth15 ft
Surface Area345.63 acres
Shoreline Length3.8 mi
Littoral Zone46%
Public AccessYes

Fish Species

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

→ Best fishing times for Sixth Crow Wing Lake (14-day solunar calendar)

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

Sixth Crow Wing Lake fishing regulations (limits, seasons, special rules)

Water Quality Trend: Stable

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.018 m/yr5
Phosphorus Stable-0.4 µg/L/yr5

Ice Season

Historical ice data from Minnesota DNR (12 observations).

Typical Ice-Out
Apr 15
Typical Ice-In
Nov 22

Estimated open water season: 221 days

EarliestLatest
Ice-Out2015-04-12 (2015)2004-04-17 (2004)
Ice-In2003-11-08 (2003)2001-12-02 (2001)

Most recent ice-out: 2015-04-12

Location

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County Ranking

Ranked #68 of 77 lakes in Hubbard County

Nearby Lakes in Hubbard County

DNR Fisheries Survey Summary

12 surveys on file from MN DNR Fisheries. Most recent: 2024-08-12 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Yellow Perch22.020.13 lb
BCS15.50
Bluegill15.080.18 lb
IOD10.75
Largemouth Bass8.351.03 lb
CNM5.91

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

58 fish · 39 in · 2024-08-12
251303456789

Bluegill

815 fish · 29 in · 2024-08-12
2061030trophy 1023456789

Largemouth Bass

7 fish · 514 in · 2024-08-12
320567891011121314

From the 2024-08-12 survey

Sixth Crow Wing Lake is located two miles southwest of Nevis in southern Hubbard County. Sixth Crow Wing is part of a chain of lakes running from Eleventh Crow Wing Lake at the headwaters, down to First Crow Wing Lake. Sixth Crow Wing Lake has a surface area of 340 acres and a maximum depth of 40 feet. A DNR-owned…

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 Sixth Crow Wing Lake. 4 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

Ice data from Minnesota DNR Climate

Most recent sample: 2024-09-16

Monitoring stations: 1