Bass Lake
Bass Lake in Bayfield County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.5 ft visibility. Maximum depth: 43 ft. Surface area: 81 acres.
- Clarity
- 5.5 ft
- Max depth
- 43 ft
- Area
- 81 acres
- Trend
- → Stable
- Public access
- Yes
Next lake in Bayfield County
Why Bass Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Bass Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Bass Lake is a 81-acre lake in Bayfield County, Wisconsin with a maximum depth of 43 feet. The lake supports 3 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-08-15. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Bass Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 5.5 ft. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Bass Lake
Compare lakeside cabins, hotels, and vacation rentals near Bass Lake in Bayfield 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 Bass Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 43 ft |
| Surface Area | 81 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Bellevue LakePublic
- Bass LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Bass Lake
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2024).
Fish Species (DNR-rated)
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.075 m/yr | 5 |
Graded lakes near Bass Lake
Bass Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Bayfield County
Frequently asked questions about Bass Lake
What is the water quality grade for Bass Lake?
- Bass Lake in Bayfield County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.5 ft visibility. Maximum depth: 43 ft. Surface area: 81 acres.
Is Bass Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Bass Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
How deep is Bass Lake?
- Bass Lake has a maximum depth of 43 feet. The lake covers 81 acres.
What fish are in Bass Lake?
- Fish species found in Bass Lake include Panfish, Largemouth Bass, Northern Pike. Bass Lake is located in Bayfield County, Wisconsin.
Are there boat ramps on Bass Lake?
- Bass Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Bellevue Lake, Bass Lake. Public access is listed as yes.
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Where this data comes from
51 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX51 samples · 2020–2024
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated 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