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B

George Lake

Bayfield County, WisconsinLimited DataOligotrophic

George Lake comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth.

A TSI value of 39 puts George Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. The lake's 50 ft maximum depth is in the upper tier for Wisconsin — deep enough for cold-water fish to find refuge in summer. The lake is compact at 50 acres, with partial shoreline records and little volume to buffer nutrient inputs. George Lake sits at rank 38 of 52 in Bayfield County, in the lower half of the local distribution.

George Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. The fishery is bass-led, with 2 documented species across the lake's records. 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, Wisconsin DNR Surface Water, last sampled 2024-08-15. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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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 14 ft. Trophic State Index: 39.

MetricValueGrade
Water Clarity (Secchi Depth)14 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)39Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth50 ft
Surface Area50 acres

Fish Species

Click a species to see all Wisconsin and Minnesota 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)

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

Eurasian Water-Milfoil

Water Quality Trend: Improving

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.264 m/yr6
See year-by-year chart →

Location

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County Ranking

Ranked #38 of 52 lakes in Bayfield County

Cleaner Lakes Within 30 Miles

George Lake holds Grade B. 3 nearby lakes hold higher grades.

Nearby Lakes in Bayfield County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2024).

Fish Species (DNR-rated)

Panfish(Common)Largemouth Bass(Present)

DNR Reports & Resources

Wisconsin DNR Fisheries scientists publish multi-year survey reports for George Lake covering fish populations, stocking, water quality, and management. 1 report on file.

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2024-08-15

Monitoring stations: 1