Bone Lake vs Half Moon Lake
Water quality, depth, fish species, and recreation comparison.
Half Moon Lake has a higher water quality grade (A, Excellent) than Bone Lake (B, Good). Both are in Polk County, Wisconsin.
Both Bone Lake and Half Moon 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 — Bone Lake (B) versus Half Moon Lake (A). 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.
Bone Lake
Moderate clarity, visible to about 7.5 ft.
Half Moon Lake
Crystal clear, you can see 15.3 ft down.
Side-by-Side Metrics
| Metric | Bone Lake | Half Moon Lake |
|---|---|---|
| Overall Grade | B (Good) | A (Excellent) |
| Water Clarity | 7.5 ft | 15.3 ft |
| Phosphorus | 20.2 µg/L | 13.9 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 43 ft | 60 ft |
| Surface Area | 1.7K acres | 550 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | mesotrophic | oligotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Half Moon Lake wins on overall water quality with a Grade A versus Bone Lake's Grade B. Water clarity: 15.3 ft vs 7.5 ft. For fishing diversity, Half Moon Lake also leads with 0 species.