Lake Audubon vs Qacmainstdup Lake
Water quality, depth, fish species, and recreation comparison.
Qacmainstdup Lake has a higher water quality grade (B, Good) than Lake Audubon (B, Good). Both are in North Dakota.
Lake Audubon and Qacmainstdup Lake are both in North Dakota — 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. These two are within a letter of each other on the rubric — Lake Audubon (B) versus Qacmainstdup 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.
Lake Audubon
Murky, only visible to about 4.7 ft.
Qacmainstdup Lake
No clarity data.
Side-by-Side Metrics
| Metric | Lake Audubon | Qacmainstdup Lake |
|---|---|---|
| Overall Grade | B (Good) | B (Good) |
| Water Clarity | 4.7 ft | No data |
| Phosphorus | No data | 10 µg/L |
| Chlorophyll-a (Algae) | 4.7 µg/L | 11 µg/L |
| Maximum Depth | 59.4 ft | - |
| Surface Area | 19,095 acres | 133,000 acres |
| Public Access | Yes | Yes |
| Fish Species | 11 | 1 |
| Trophic State | eutrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Qacmainstdup Lake wins on overall water quality with a Grade B versus Lake Audubon's Grade B. For more fish-species variety, Lake Audubon edges ahead with 11 documented species.