Lake Mohawksin vs Spirit River Flowage Lake
Water quality, depth, fish species, and recreation comparison.
Lake Mohawksin has a higher water quality grade (C, Fair) than Spirit River Flowage Lake (D, Poor). Both are in Lincoln County, Wisconsin.
Both Lake Mohawksin and Spirit River Flowage Lake sit in Wisconsin. 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. These two are within a letter of each other on the rubric — Lake Mohawksin (C) versus Spirit River Flowage Lake (D). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.
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 Mohawksin
Murky, only visible to about 4 ft.
Spirit River Flowage Lake
Very murky, less than 3 ft of visibility.
Side-by-Side Metrics
| Metric | Lake Mohawksin | Spirit River Flowage Lake |
|---|---|---|
| Overall Grade | C (Fair) | D (Poor) |
| Water Clarity | 4 ft | 3 ft |
| Phosphorus | 34.7 µg/L | 49.1 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 25 ft | 25 ft |
| Surface Area | 1.5K acres | 1.2K acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Lake Mohawksin wins on overall water quality with a Grade C versus Spirit River Flowage Lake's Grade D. Water clarity: 4 ft vs 3 ft. For fishing diversity, Lake Mohawksin also leads with 0 species.