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LakeQuality

Lake Lamoure vs Sprague Lake

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

Lake Lamoure has a higher water quality grade (C, Fair) than Sprague Lake (F, Very Poor). Both are in Wisconsin.

Both Lake Lamoure and Sprague 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 meaningfully apart: Lake Lamoure grades a C while Sprague Lake grades a F. That two-letter spread reflects real underlying differences — different watershed inputs, different depth profiles, or different monitoring rigor.

For a recreational visitor, the wider grade gap is decisive — Lake Lamoure is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

C

Lake Lamoure

LaMoure County, Wisconsin

Moderate clarity, visible to about 8 ft.

F

Sprague Lake

Sargent County, Wisconsin

Very murky, less than 1.6 ft of visibility.

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.

MetricLake LamoureSprague Lake
Overall GradeC (Fair)F (Very Poor)
Water Clarity8 ft1.6 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)18.4 µg/L43.4 µg/L
Maximum Depth--
Surface Area494.1 acres58 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

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

Verdict

Lake Lamoure wins on overall water quality with a Grade C versus Sprague Lake's Grade F. Water clarity: 8 ft vs 1.6 ft. For fishing diversity, Lake Lamoure also leads with 0 species.