Chippewa Flowage -Moore'S Bay Lake
Chippewa Flowage -Moore'S Bay Lake in Sawyer County, Wisconsin has a water quality grade of C (Fair). Water clarity: 4.1 ft visibility. Phosphorus: 35 µg/L. Chlorophyll-a (algae): 8.1 µg/L. Maximum depth: 92 ft. Surface area: 14593 acres.
- Clarity
- 4.1 ft
- Max depth
- 92 ft
- Area
- 14,593 acres
- Type
- Eutrophic
- Trend
- ↓ Declining
- Public access
- Yes
Next lake in Sawyer County
Chippewa Flowage -Moore'S Bay Lake is a 14,593-acre productive, nutrient-rich eutrophic lake in Sawyer County, Wisconsin with a maximum depth of 92 feet. Water quality is graded C based on 2 sampling years through 2024. Overall water quality is declining over recent sampling years. The lake supports 8 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, Chippewa Flowage -Moore'S Bay Lake ranks #38 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-09-12. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyModerate
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
Murky, only visible to about 4.1 ft. Phosphorus level: 35 µg/L. Chlorophyll-a: 8.1 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.1 ft | Not graded |
| Phosphorus | 35 µg/L | Fair |
| Chlorophyll-a (Algae) | 8.1 µg/L | Fair |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Chippewa Flowage -Moore'S Bay Lake
Compare lakeside cabins, hotels, and vacation rentals near Chippewa Flowage -Moore'S Bay 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.
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 92 ft |
| Surface Area | 14,593 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Hay CreekPublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Chippewa Flowage -Moore'S Bay 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.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 9 stations on file (most recent sample 2020).
Fish Species (DNR-rated)
Water Quality Trend: ↓ Declining
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.316 m/yr | 4 |
| Phosphorus | ↓ Declining | +0.71 µg/L/yr | 4 |
| Chlorophyll-a | ↓ Declining | +0.75 µg/L/yr | 3 |
County Ranking
Ranked #38 of 45 lakes in Sawyer County
Nearby Lakes With Higher Grades
Chippewa Flowage -Moore'S Bay Lake holds Grade C. 3 nearby lakes hold higher nutrient-and-algae grades — useful for a swim day, not a reason to skip lodging here.
See full comparison →Nearby Lakes in Sawyer County
Frequently asked questions about Chippewa Flowage -Moore'S Bay Lake
What is the water quality grade for Chippewa Flowage -Moore'S Bay Lake?
- Chippewa Flowage -Moore'S Bay Lake in Sawyer County, Wisconsin has a water quality grade of C (Fair). Water clarity: 4.1 ft visibility. Phosphorus: 35 µg/L. Chlorophyll-a (algae): 8.1 µg/L. Maximum depth: 92 ft. Surface area: 14593 acres.
Is Chippewa Flowage -Moore'S Bay Lake safe to swim in?
- Generally safe for swimming, moderate water quality. Chippewa Flowage -Moore'S Bay Lake has a water quality grade of C (Fair). Algae concentration (chlorophyll-a) is 8.1 µg/L. Always check local health department advisories before swimming.
How deep is Chippewa Flowage -Moore'S Bay Lake?
- Chippewa Flowage -Moore'S Bay Lake has a maximum depth of 92 feet. The lake covers 14593 acres.
What fish are in Chippewa Flowage -Moore'S Bay Lake?
- Fish species found in Chippewa Flowage -Moore'S Bay Lake include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye, Sturgeon, Catfish. Chippewa Flowage -Moore'S Bay Lake is located in Sawyer County, Wisconsin.
Are there boat ramps on Chippewa Flowage -Moore'S Bay Lake?
- Chippewa Flowage -Moore'S Bay Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Hay Creek. Public access is listed as yes.
Explore Chippewa Flowage -Moore'S Bay Lake across LakeGrade
Depth, room, public access, and the state wake-sport rules
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Fish species and best lakes in Sawyer County
Species activity outlook by water temperature and season
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Where to stay at Wisconsin's top lakes, each with its grade
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High nutrients, frequent algae, reduced clarity
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More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Compare Chippewa Flowage -Moore'S Bay Lake With Nearby Lakes
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Where this data comes from
33 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_WQX33 samples · 2020–2024
Analytical methods
- 4500 P F ~ Phosphorus in Water by Colorimetry Automated Ascorbic Acid Method
- 4500 P E ~ Phosphorus in Water by Colorimetry- 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)
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