Tadpole Lake
Tadpole Lake in Sheridan County, Montana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 346 acres.
- Area
- 346 acres
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Why Tadpole 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 Tadpole 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 Montana DEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Tadpole Lake is a 346-acre lake in Sheridan County, Montana.
Source: EPA Water Quality Portal sampling records, Montana DEQ, last sampled recent years. Grade methodology: LakeQuality methodology.
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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 Tadpole 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 Tadpole Lake
Compare lakeside cabins, hotels, and vacation rentals near Tadpole Lake in Sheridan County, Montana — 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 Tadpole Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 346 acres |
No bathymetric survey has been published for Tadpole Lake, so its depth is not documented here.
Fishing Tadpole Lake
Nearby Lakes in Sheridan County
Frequently asked questions about Tadpole Lake
Where is Tadpole Lake?
- Tadpole Lake is a lake in Sheridan County, Montana. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Tadpole Lake?
- Tadpole Lake in Sheridan County, Montana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 346 acres.
Is Tadpole Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Tadpole 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 Tadpole Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.