Boulder Lake vs Irving Lake
Water quality, depth, fish species, and recreation comparison.
Irving Lake has a higher water quality grade (A, Excellent) than Boulder Lake (A, Excellent). Both are in Vilas County, Wisconsin.
A
Boulder Lake
Vilas County, Wisconsin
Crystal clear, you can see 18.9 ft down.
A
Irving Lake
Vilas County, Wisconsin
Crystal clear, you can see 36.1 ft down.
Side-by-Side Metrics
| Metric | Boulder Lake | Irving Lake |
|---|---|---|
| Overall Grade | A (Excellent) | A (Excellent) |
| Water Clarity | 18.9 ft | 36.1 ft |
| Phosphorus | 21.6 µg/L | 18.6 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 23 ft | - |
| Surface Area | 516 acres | 419 acres |
| Public Access | Yes | Yes |
| Fish Species | 6 | 4 |
| Trophic State | mesotrophic | oligotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Irving Lake wins on overall water quality with a Grade A versus Boulder Lake's Grade A. Water clarity: 36.1 ft vs 18.9 ft. For more fish-species variety, Boulder Lake edges ahead with 6 documented species.