Crystal Lake Max Depth vs State Line Lake
Water quality, depth, fish species, and recreation comparison.
State Line Lake has a higher water quality grade (D, Poor) than Crystal Lake Max Depth (F, Very Poor).
Crystal Lake Max Depth is in Iowa; State Line Lake is in Minnesota. Cross-state comparisons carry an extra wrinkle — Minnesota PCA and Wisconsin DNR use slightly different sampling cadences and station coverage, though both feed the same EPA Water Quality Portal. These two are within a letter of each other on the rubric — Crystal Lake Max Depth (F) versus State Line 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.
Crystal Lake Max Depth
Very murky, less than 1.6 ft of visibility.
State Line Lake
Murky, only visible to about 5.2 ft.
Side-by-Side Metrics
| Metric | Crystal Lake Max Depth | State Line Lake |
|---|---|---|
| Overall Grade | F (Very Poor) | D (Poor) |
| Water Clarity | 1.6 ft | 5.2 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | 50.3 µg/L | No data |
| Maximum Depth | - | - |
| Surface Area | 9.7 acres | 425 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 1 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
State Line Lake wins on overall water quality with a Grade D versus Crystal Lake Max Depth's Grade F. Water clarity: 5.2 ft vs 1.6 ft. For fishing diversity, State Line Lake also leads with 1 species.