Otto Lake
Otto Lake in Denali County, Alaska is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 127 acres.
- Area
- 127 acres
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Why Otto Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Otto Lake, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Otto Lake is a 127-acre lake in Denali County, Alaska.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Otto Lake water quality
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Otto Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Otto Lake
Compare lakeside cabins, hotels, and vacation rentals near Otto Lake in Denali County, Alaska — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Otto Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 127 acres |
No bathymetric survey has been published for Otto Lake, so its depth is not documented here.
Fishing Otto Lake
Nearby Lakes in Denali County
Frequently asked questions about Otto Lake
Where is Otto Lake?
- Otto Lake is a lake in Denali County, Alaska. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Otto Lake?
- Otto Lake in Denali County, Alaska is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 127 acres.
Is Otto Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Otto Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Otto Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.