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LakeQuality

Lake Lamoure vs Twin Lakes

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

Twin Lakes has a higher water quality grade (A, Excellent) than Lake Lamoure (C, Fair). Both are in LaMoure County, North Dakota.

Reviewed by LakeQuality Editorial Team · Updated

Both Lake Lamoure and Twin Lakes 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: Twin Lakes grades a A while Lake Lamoure grades a C. 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 — Twin Lakes 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, North Dakota

Moderate clarity, visible to about 8 ft.

A

Twin Lakes

LaMoure County, North Dakota

Good clarity, visible to about 14.1 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.

MetricLake LamoureTwin Lakes
Overall GradeC (Fair)A (Excellent)
Water Clarity8 ft14.1 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)18.4 µg/L3.2 µg/L
Maximum Depth31.4 ft40.3 ft
Surface Area494.1 acres1.7K acres
Public AccessYesYes
Fish Species73
Trophic Stateeutrophicmesotrophic

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

Verdict

Twin Lakes wins on overall water quality with a Grade A versus Lake Lamoure's Grade C. Water clarity: 14.1 ft vs 8 ft. For more fish-species variety, Lake Lamoure edges ahead with 7 documented species.