Neshonoc Lake vs Sidie Hollow Lake
Water quality, depth, fish species, and recreation comparison.
Sidie Hollow Lake has a higher water quality grade (B, Good) than Neshonoc Lake (F, Very Poor). Both are in Wisconsin.
Neshonoc Lake and Sidie Hollow Lake are both in Wisconsin — 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 meaningfully apart: Sidie Hollow Lake grades a B while Neshonoc Lake grades a F. 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 — Sidie Hollow Lake 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?
Neshonoc Lake
Very murky, less than 0.4 ft of visibility.
Sidie Hollow Lake
Good clarity, visible to about 12 ft.
Side-by-Side Metrics
| Metric | Neshonoc Lake | Sidie Hollow Lake |
|---|---|---|
| Overall Grade | F (Very Poor) | B (Good) |
| Water Clarity | 0.4 ft | 12 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | - | - |
| Surface Area | 687 acres | 78 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | hypereutrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Sidie Hollow Lake wins on overall water quality with a Grade B versus Neshonoc Lake's Grade F. Water clarity: 12 ft vs 0.4 ft. For fishing diversity, Sidie Hollow Lake also leads with 0 species.