Chippewa Flowage -North of Cranberry Bars Lake
Sawyer County, WisconsinMesotrophic
Chippewa Flowage -North of Cranberry Bars Lake comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth. Phosphorus is the parameter holding the grade back — runoff from the surrounding watershed appears to keep nutrient levels elevated through the summer.
A TSI near 49 places Chippewa Flowage -North of Cranberry Bars Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. At 92 ft of maximum depth, Chippewa Flowage -North of Cranberry Bars Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. At 14,593 acres, Chippewa Flowage -North of Cranberry Bars Lake is one of the larger lakes in Sawyer County, with partial shoreline records supporting multiple distinct use patterns. Within the 52 graded lakes of Sawyer County, Chippewa Flowage -North of Cranberry Bars Lake sits at rank 42, near the bottom of the county list.
Eurasian watermilfoil is established at Chippewa Flowage -North of Cranberry Bars Lake, which can dampen recreational access and pressure the native plant community. The fishery includes walleye alongside the lake's other 8 documented species — a notable draw for Wisconsin anglers. A documented public access point at Chippewa Flowage -North of Cranberry Bars Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is supported by multiple sampling years from the Wisconsin DNR Citizen Lake Monitoring Network, giving the letter a reasonably stable foundation.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-09-12. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Crystal clear, you can see 15.9 ft down. Phosphorus level: 37 µg/L. Chlorophyll-a: 9.8 µg/L. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.9 ft | A |
| Phosphorus | 37 µg/L | C |
| Chlorophyll-a (Algae) | 9.8 µg/L | B |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 92 ft |
| Surface Area | 14.6K acres |
| Public Access | Yes |
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Chippewa Flowage -North of Cranberry Bars Lake (14-day solunar calendar)
→ Is it safe to eat fish from Chippewa Flowage -North of Cranberry Bars Lake? (mercury & PFAS guide)
Invasive Species
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.222 m/yr | 5 |
| Phosphorus | ↓ Declining | +4.5 µg/L/yr | 2 |
| Chlorophyll-a | ↑ Improving | -0.47 µg/L/yr | 2 |
Recreation & Access
Location
County Ranking
Ranked #42 of 52 lakes in Sawyer County
Cleaner Lakes Within 30 Miles
Chippewa Flowage -North of Cranberry Bars Lake holds Grade B. 5 nearby lakes hold higher grades.
- ABlueberry LakeSawyer County · 6.6 mi · Higher grade (B → A)
- ALost LakeSawyer County · 7.6 mi · Higher grade (B → A)
- ABarber LakeSawyer County · 7.6 mi · Higher grade (B → A)
- ACallahan LakeSawyer County · 7.9 mi · Higher grade (B → A)
- BChippewa Flowage -Pokegema LakeSawyer County · 2.6 mi · Higher overall water quality score
Nearby Lakes in Sawyer County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 9 stations on file (most recent sample 2020).
Fish Species (DNR-rated)
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Most recent sample: 2024-09-12
Monitoring stations: 1