Long Lake vs Town Line Lake
Water quality, depth, fish species, and recreation comparison.
Long Lake has a higher water quality grade (A, Excellent) than Town Line Lake (B, Good). Both are in Cass County, Minnesota.
Both Long Lake and Town Line Lake sit in Minnesota. 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 — Long Lake (A) versus Town Line Lake (B). 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.
Long Lake
Crystal clear, you can see 21.5 ft down.
Town Line Lake
Murky, only visible to about 6.6 ft.
Side-by-Side Metrics
| Metric | Long Lake | Town Line Lake |
|---|---|---|
| Overall Grade | A (Excellent) | B (Good) |
| Water Clarity | 21.5 ft | 6.6 ft |
| Phosphorus | 9 µg/L | 11 µg/L |
| Chlorophyll-a (Algae) | No data | 2.1 µg/L |
| Maximum Depth | 115 ft | 11 ft |
| Surface Area | 1.0K acres | 697.67 acres |
| Public Access | Yes | Yes |
| Fish Species | 1 | 1 |
| Trophic State | oligotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Long Lake wins on overall water quality with a Grade A versus Town Line Lake's Grade B. Water clarity: 21.5 ft vs 6.6 ft. For fishing diversity, Long Lake also leads with 1 species.