Long Lake North Channel
Washburn County, Wisconsin3,478 acresView mapDirections
No nutrient or algae sampling on record from Wisconsin DNR for this lake.
- Curly-Leaf Pondweed
- 74 ft max depth
- Public access
- Limited data
Ask about Long Lake North Channel
Answers come straight from the public measurements and survey records on this page.
Long Lake North Channel in Washburn County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 74 ft. Surface area: 3478 acres.
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Long Lake North Channel is a 3,478-acre lake in Washburn County, Wisconsin with a maximum depth of 74 feet. Overall water quality is improving over recent sampling years. The lake supports 5 documented fish species including Panfish, Largemouth Bass, and Smallmouth Bass. Public access is available.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-05-28. Grade methodology: LakeQuality methodology.
What Long Lake North Channel is good for
From access and monitoring records, not editorial picks.
- Fishing5 species recorded
- Deep water74 ft surveyed max depth
- Big water3,478 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Long Lake North Channel 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 Long Lake North Channel
These are the measurements Wisconsin DNR publishes for Long Lake North Channel, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 74 ft |
| Surface Area | 3,478 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fish Species
Click a species to see every lake where it is documented.
Fishing Long Lake North Channel
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 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.313 m/yr | 7 |
| Phosphorus | ↑ Improving | -1.15 µg/L/yr | 7 |
Nearby Lakes in Washburn County
Frequently asked questions about Long Lake North Channel
Where is Long Lake North Channel?
- Long Lake North Channel is a lake in Washburn County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Long Lake North Channel?
- Long Lake North Channel in Washburn County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 74 ft. Surface area: 3478 acres.
Is Long Lake North Channel safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Long Lake North Channel?
- Long Lake North Channel has a maximum depth of 74 feet. The lake covers 3478 acres.
What fish are in Long Lake North Channel?
- Fish species found in Long Lake North Channel include Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye. Long Lake North Channel is located in Washburn County, Wisconsin.
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Where this data comes from
1 measurement from 1 monitoring station, 2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX1 sample · 2026
Analytical methods
- Total Phosphorus After Block Digestion
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