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Lake Buteau

Lincoln County, WisconsinOligotrophic

Lake Buteau earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Lincoln County. 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.

Trophically, Lake Buteau reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. At 50 ft of maximum depth, Lake Buteau stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. The lake is compact at 51 acres, with partial shoreline records and little volume to buffer nutrient inputs. Lake Buteau sits at rank 13 of 21 in Lincoln County, in the lower half of the local distribution.

No invasive species are currently listed at Lake Buteau — the lake remains off the Wisconsin infested-waters roster. The fishery is bass-led, with 3 documented species across the lake's records. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-08-29. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 63.7 ft down. Phosphorus level: 10.2 µg/L. Trophic State Index: 27.

MetricValueGrade
Water Clarity (Secchi Depth)63.7 ftA
Phosphorus10.2 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)27Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth50 ft
Surface Area51 acres

Fish Species

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

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

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

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

Water Quality Trend: Improving

Based on 7 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.257 m/yr7
Phosphorus Improving-0.86 µg/L/yr6

Location

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County Ranking

Ranked #13 of 21 lakes in Lincoln County

Nearby Lakes in Lincoln County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1999. 2 stations on file (most recent sample 2025).

Fish Species (DNR-rated)

Panfish(Abundant)Largemouth Bass(Common)Northern Pike(Present)

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2025-08-29

Monitoring stations: 2