Latoka Lake vs Smith Lake
Water quality, depth, fish species, and recreation comparison.
Latoka Lake has a higher water quality grade (A, Excellent) than Smith Lake (D, Poor). Both are in Douglas County, Minnesota.
Latoka Lake and Smith Lake are both in Minnesota — 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: Latoka Lake grades a A while Smith Lake grades a D. 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 — Latoka 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?
Latoka Lake
Crystal clear, you can see 19 ft down.
Smith Lake
Murky, only visible to about 3.6 ft.
Side-by-Side Metrics
| Metric | Latoka Lake | Smith Lake |
|---|---|---|
| Overall Grade | A (Excellent) | D (Poor) |
| Water Clarity | 19 ft | 3.6 ft |
| Phosphorus | 11 µg/L | 60 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 108 ft | 30 ft |
| Surface Area | 766.63 acres | 666.33 acres |
| Public Access | Yes | Yes |
| Fish Species | 1 | 1 |
| Trophic State | oligotrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Latoka Lake wins on overall water quality with a Grade A versus Smith Lake's Grade D. Water clarity: 19 ft vs 3.6 ft. For fishing diversity, Latoka Lake also leads with 1 species.