Lake Capri vs Lake Marseilles-Terre du Lac Lakes
Water quality, depth, fish species, and recreation comparison.
Lake Capri has a higher water quality grade (A, Excellent) than Lake Marseilles-Terre du Lac Lakes (A, Excellent). Both are in St. Francois County, Wisconsin.
Lake Capri and Lake Marseilles-Terre du Lac Lakes are both in Missouri — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. The grades are close: Lake Capri (A) and Lake Marseilles-Terre du Lac Lakes (A) 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.
Lake Capri
Crystal clear, you can see 16.3 ft down.
Lake Marseilles-Terre du Lac Lakes
Good clarity, visible to about 14.1 ft.
Side-by-Side Metrics
| Metric | Lake Capri | Lake Marseilles-Terre du Lac Lakes |
|---|---|---|
| Overall Grade | A (Excellent) | A (Excellent) |
| Water Clarity | 16.3 ft | 14.1 ft |
| Phosphorus | 5.7 µg/L | 7.4 µg/L |
| Chlorophyll-a (Algae) | 0.9 µg/L | 2.4 µg/L |
| Maximum Depth | - | - |
| Surface Area | 112 acres | 56 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | oligotrophic | oligotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Lake Capri wins on overall water quality with a Grade A versus Lake Marseilles-Terre du Lac Lakes's Grade A. Water clarity: 16.3 ft vs 14.1 ft. For fishing diversity, Lake Capri also leads with 0 species.