George Lake
Cass County, MinnesotaEutrophic
The LakeGrade rubric puts George Lake at a C: clarity at 4.5 ft, 40 µg/L of phosphorus, and a TSI of 56 signal an intermediate trophic state. clarity and phosphorus rate similarly, so there is no obvious single lever to pull on watershed management.
At a TSI of 56, George Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. The lake bottoms out at 20 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 612 acres, George Lake fits the Minnesota median for monitored lakes, with 6.8 miles of shoreline. Within the 132 graded lakes of Cass County, George Lake sits at rank 128, near the bottom of the county list.
No invasive species are currently listed at George Lake — the lake remains off the Minnesota infested-waters roster. The fishery is bass-led, with 11 documented species across the lake's records. 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 2024-09-12. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 4.5 ft. Phosphorus level: 40 µg/L. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.5 ft | D |
| Phosphorus | 40 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 20 ft |
| Surface Area | 612.45 acres |
| Shoreline Length | 6.8 mi |
| Littoral Zone | 99% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for George Lake (14-day solunar calendar)
→ Is it safe to eat fish from George Lake? (mercury & PFAS guide)
→ George Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.244 m/yr | 5 |
| Phosphorus | ↑ Improving | -5.5 µg/L/yr | 2 |
Location
County Ranking
Ranked #128 of 132 lakes in Cass County
Cleaner Lakes Within 30 Miles
George Lake holds Grade C. 4 nearby lakes hold higher grades.
- AIsland LakeCass County · mi · Two grade letters higher (C → A)
- AWashburn LakeCass County · mi · Two grade letters higher (C → A)
- AWood LakeCrow Wing County · mi · Two grade letters higher (C → A)
- BStevens LakeCass County · mi · Higher grade (C → B)
Nearby Lakes in Cass County
More Minnesota Lake Rankings
Other Grade C Lakes in Minnesota
Eutrophic Lakes in Minnesota
Compare George Lake With Nearby Lakes
DNR Fisheries Survey Summary
4 surveys on file from MN DNR Fisheries. Most recent: 2025-06-02 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Brown Bullhead | 66.09 | 0.21 lb |
| Bluegill | 11.18 | 0.33 lb |
| Yellow Perch | 10.52 | 0.14 lb |
| Black Bullhead | 9.75 | 0.38 lb |
| GOS | 5.55 | — |
| Northern Pike | 5.17 | 1.37 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.
Brown Bullhead
Bluegill
Yellow Perch
Black Bullhead
From the 2025-06-02 survey
George is a 612-acre lake near the city of Outing in Cass County. It has a DNR owned access, with a concrete ramp, on the south end of the lake. A standard survey using gill nets and trap nets was conducted in June 2025 to assess fish populations from recent winterkill events and provide information to anglers.…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for George Lake. 4 reports on file.
- —Fisheries Lake Survey — GeorgeFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — George (1521)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — GeorgeFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — GeorgePublic Water Access Sites · MN DNR LakeFinder
EPA Impairment Status
George Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN11-0059-00 · Official waterbody report · Matched by proximity (2.91 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Most recent sample: 2024-09-12
Monitoring stations: 1