Ashegon Lake
Sawyer County, Wisconsin75 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Ashegon Lake. Here is what has been measured.
- Mesotrophic
- 56 ft max depth
- Public access
Ashegon Lake in Sawyer County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 10.5 ft visibility. Phosphorus: 18 µg/L. Chlorophyll-a (algae): 2.7 µg/L. Maximum depth: 56 ft. Surface area: 75 acres.
Wisconsin DNR rates Panfish as abundant on Ashegon Lake. DNR survey details →
Ashegon Lake is a 75-acre mesotrophic lake in Sawyer County, Wisconsin with a maximum depth of 56 feet. Overall water quality is improving over recent sampling years. The lake supports 6 documented fish species including Musky, Panfish, and Largemouth Bass. Public access is available with 1 public boat landing. Compared to the 44 other monitored lakes in Sawyer County, Ashegon Lake ranks #8 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-09-03. Methodology: how these readings are compared.
Ashegon Lake covers about 75 acres in Sawyer County. It has one public boat landing. Vrbo is where to look for cabins and lake homes around Ashegon Lake, and Booking.com and Expedia search hotels near the lake for your dates.
What Ashegon Lake is good for
From access and monitoring records, not editorial picks.
- Clear water10.5 ft of visibility
- Boat launch1 documented ramp
- Fishing6 species recorded
- Deep water56 ft surveyed max depth
Swimming conditions
Readings onlyLow algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Ashegon Lake 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 Ashegon Lake
These are the measurements Wisconsin DNR publishes for Ashegon Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 10.5 ft. Phosphorus 18 µg/L. Chlorophyll-a 2.7 µg/L. TSI 43.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 10.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 18µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 2.7µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 43 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Ashegon Lake
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR rates Panfish as abundant on Ashegon Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Ashegon Lake’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is improving. 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.
Fish Species (DNR-rated)
Lake Details
Max depth
56 ft
Surface area
75 acres
Public access
Yes
Listed by Wisconsin DNR
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Shoreline
2 mi
HydroLAKES / HydroSHEDS
Elevation
1,325 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Ashegon LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Ashegon Lake
Compare lakeside cabins, hotels, and vacation rentals near Ashegon Lake in Sawyer County, Wisconsin — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Ashegon Lake
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Follow Ashegon Lake’s readings
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Fish Species
Click a species to see every lake where it is documented.
Fishing Ashegon Lake
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: Improving
Based on 5 years of monitoring (2020–2024).
Water clarity
Improving5 years
Phosphorus
Improving-0.8 µg/L/yr5 years
Chlorophyll-a
Improving-1.02 µg/L/yr5 years
Nearby Lakes in Sawyer County
Frequently asked questions about Ashegon Lake
Where is Ashegon Lake?
- Ashegon Lake is a lake in Sawyer County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Ashegon Lake?
- Ashegon Lake in Sawyer County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 10.5 ft visibility. Phosphorus: 18 µg/L. Chlorophyll-a (algae): 2.7 µg/L. Maximum depth: 56 ft. Surface area: 75 acres.
Is Ashegon Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Ashegon Lake?
- Ashegon Lake has a maximum depth of 56 feet. The lake covers 75 acres.
What fish are in Ashegon Lake?
- Fish species found in Ashegon Lake include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Trout, Walleye. Ashegon Lake is located in Sawyer County, Wisconsin.
What did the DNR fisheries survey find at Ashegon Lake?
- Wisconsin DNR rates Panfish as abundant on Ashegon Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Ashegon Lake’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Ashegon Lake?
- Ashegon Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Ashegon Lake. Public access is listed as yes.
Can I fish at Ashegon Lake?
- Ashegon Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.
Explore Ashegon Lake across LakeQuality
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Where this data comes from
70 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Lac Courte Oreilles (Tribal)
LCOWIS_WQX70 samples · 2020–2024
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 4500 P F ~ Phosphorus in Water by Colorimetry Automated Ascorbic Acid Method
- 2320 B ~ Alkalinity by Gran Titration
- 4500 P E ~ Phosphorus by Ascorbic Acid
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)
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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory