Rocky Fork Lake vs Tri City Lake
Water quality, depth, fish species, and recreation comparison.
Tri City Lake has a higher water quality grade (D, Poor) than Rocky Fork Lake (F, Very Poor). Both are in Boone County, Wisconsin.
Both Rocky Fork Lake and Tri City Lake sit in Missouri. 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: Rocky Fork Lake (F) and Tri City Lake (D) 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.
Rocky Fork Lake
Very murky, less than 2.3 ft of visibility.
Tri City Lake
No clarity data.
Side-by-Side Metrics
| Metric | Rocky Fork Lake | Tri City Lake |
|---|---|---|
| Overall Grade | F (Very Poor) | D (Poor) |
| Water Clarity | 2.3 ft | No data |
| Phosphorus | 73.8 µg/L | 76 µg/L |
| Chlorophyll-a (Algae) | 38.1 µg/L | 24.7 µg/L |
| Maximum Depth | - | - |
| Surface Area | 55 acres | 28 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
Tri City Lake wins on overall water quality with a Grade D versus Rocky Fork Lake's Grade F. For fishing diversity, Tri City Lake also leads with 0 species.