Robinson Lake
Bayfield County, Wisconsin89 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Robinson Lake. Here is what has been measured.
- Mesotrophic
- 36 ft max depth
- Public access
Robinson Lake in Bayfield County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 13.5 ft visibility. Phosphorus: 15.1 µg/L. Maximum depth: 36 ft. Surface area: 89 acres.
Wisconsin DNR lists Panfish as common on Robinson Lake. DNR survey details →
Robinson Lake is a 89-acre mesotrophic lake in Bayfield County, Wisconsin with a maximum depth of 36 feet. Overall water quality is improving over recent sampling years. The lake supports 4 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing. Compared to the 23 other monitored lakes in Bayfield County, Robinson Lake ranks #12 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-08-26. Methodology: how these readings are compared.
What Robinson Lake is good for
From access and monitoring records, not editorial picks.
- Clear water13.5 ft of visibility
- Boat launch1 documented ramp
- Fishing4 species recorded
- Deep water36 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 Robinson 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 Robinson Lake
These are the measurements Wisconsin DNR publishes for Robinson 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 13.5 ft. Phosphorus 15.1 µg/L. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 13.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 15.1µg/L | Good GoodFairPoor |
| 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. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Robinson Lake
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR lists Panfish as common on Robinson Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Robinson Lake’s water-quality measurements separately, and the water-quality trend over 6 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. Monitored by volunteers since 2001. 1 station on file (most recent sample 2025).
Fish Species (DNR-rated)
Lake Details
Max depth
36 ft
Surface area
89 acres
Public access
Yes
Listed by Wisconsin DNR
Lake Size & Watershed
Watershed (drainage) area
8 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.6 mi
HydroLAKES / HydroSHEDS
Elevation
1,129 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Robinson 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 Robinson Lake
Compare lakeside cabins, hotels, and vacation rentals near Robinson 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 Robinson Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Robinson 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 6 years of monitoring (2020–2025).
Water clarity
Improving6 years
Phosphorus
Improving-1.23 µg/L/yr6 years
Nearby Lakes in Bayfield County
Frequently asked questions about Robinson Lake
Where is Robinson Lake?
- Robinson Lake is a lake in Bayfield County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Robinson Lake?
- Robinson Lake in Bayfield County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 13.5 ft visibility. Phosphorus: 15.1 µg/L. Maximum depth: 36 ft. Surface area: 89 acres.
Is Robinson Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Robinson Lake?
- Robinson Lake has a maximum depth of 36 feet. The lake covers 89 acres.
What fish are in Robinson Lake?
- Fish species found in Robinson Lake include Panfish, Largemouth Bass, Northern Pike, Walleye. Robinson Lake is located in Bayfield County, Wisconsin.
What did the DNR fisheries survey find at Robinson Lake?
- Wisconsin DNR lists Panfish as common on Robinson Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Robinson Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Robinson Lake?
- Robinson Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Robinson Lake. Public access is listed as yes.
Can I fish at Robinson Lake?
- Robinson 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 Robinson Lake across LakeQuality
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Where this data comes from
38 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX38 samples · 2020–2025
Analytical methods
- Phosphorus by Colorimetry
- Turbidity in Water
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