Upper Sugarbush Lake Deep
Vilas County, Wisconsin141 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Upper Sugarbush Lake Deep. Here is what has been measured.
- Rusty Crayfish
- 29 ft max depth
- Limited data
Upper Sugarbush Lake Deep in Vilas County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 15 ft visibility. Maximum depth: 29 ft. Surface area: 141 acres.
Wisconsin DNR lists Musky as common on Upper Sugarbush Lake Deep. DNR survey details →
Upper Sugarbush Lake Deep is a 141-acre lake in Vilas County, Wisconsin with a maximum depth of 29 feet. Water clarity is improving over recent sampling years. The lake supports 6 documented fish species including Musky, Panfish, and Largemouth Bass.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2023-09-20. Methodology: how these readings are compared.
What Upper Sugarbush Lake Deep is good for
From access and monitoring records, not editorial picks.
- Clear water15 ft of visibility
- Fishing6 species recorded
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Upper Sugarbush Lake Deep is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Upper Sugarbush Lake Deep
These are the measurements Wisconsin DNR publishes for Upper Sugarbush Lake Deep, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 15 ft down. TSI 38.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 15ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 38 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Upper Sugarbush Lake Deep
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR lists Musky as common on Upper Sugarbush Lake Deep.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Upper Sugarbush Lake Deep’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2023).
Fish Species (DNR-rated)
Lake Details
Max depth
29 ft
Surface area
141 acres
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Fish Species
Click a species to see every lake where it is documented.
Fishing Upper Sugarbush Lake Deep
- → Upper Sugarbush Lake Deep fishing: DNR survey catch rates, species & stocking
- → Upper Sugarbush Lake Deep fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Upper Sugarbush Lake Deep fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Upper Sugarbush Lake Deep? (mercury & PFAS guide)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: Stable
Based on 5 years of monitoring (2020–2025).
Water clarity
Improving4 years
Phosphorus
Worsening+0.52 µg/L/yr3 years
Nearby Lakes in Vilas County
Frequently asked questions about Upper Sugarbush Lake Deep
Where is Upper Sugarbush Lake Deep?
- Upper Sugarbush Lake Deep is a lake in Vilas County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Upper Sugarbush Lake Deep?
- Upper Sugarbush Lake Deep in Vilas County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 15 ft visibility. Maximum depth: 29 ft. Surface area: 141 acres.
Is Upper Sugarbush Lake Deep safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Upper Sugarbush Lake Deep?
- Upper Sugarbush Lake Deep has a maximum depth of 29 feet. The lake covers 141 acres.
What fish are in Upper Sugarbush Lake Deep?
- Fish species found in Upper Sugarbush Lake Deep include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye. Upper Sugarbush Lake Deep is located in Vilas County, Wisconsin.
What did the DNR fisheries survey find at Upper Sugarbush Lake Deep?
- Wisconsin DNR lists Musky as common on Upper Sugarbush Lake Deep. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Upper Sugarbush Lake Deep’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
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Where this data comes from
115 measurements from 2 monitoring stations, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Lac Du Flambeau Band of Lake Superior Chippewa Indians Water Program (Tribal)
LDFWATER2007115 samples · 2020–2023
Analytical methods
- Turbidity by Nephelometry
Monitoring station identifiers (2)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Fish and recreation data from Wisconsin DNR Lakes