Skip to main content
LakeQuality

Belourt Outlet Lake vs Bisbee-Big Coulee Dam Lake

Water quality, depth, fish species, and recreation comparison.

Bisbee-Big Coulee Dam Lake has a higher water quality grade (C, Fair) than Belourt Outlet Lake (D, Poor). Both are in Wisconsin.

Both Belourt Outlet Lake and Bisbee-Big Coulee Dam Lake sit in North Dakota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. The grades are close: Belourt Outlet Lake (D) and Bisbee-Big Coulee Dam Lake (C) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.

With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.

D

Belourt Outlet Lake

Rolette County, Wisconsin

Very murky, less than 3 ft of visibility.

C

Bisbee-Big Coulee Dam Lake

Towner County, Wisconsin

Moderate clarity, visible to about 8 ft.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricBelourt Outlet LakeBisbee-Big Coulee Dam Lake
Overall GradeD (Poor)C (Fair)
Water Clarity3 ft8 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)12.5 µg/LNo data
Maximum Depth--
Surface Area827 acres240 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophicmesotrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

Bisbee-Big Coulee Dam Lake wins on overall water quality with a Grade C versus Belourt Outlet Lake's Grade D. Water clarity: 8 ft vs 3 ft. For fishing diversity, Bisbee-Big Coulee Dam Lake also leads with 0 species.