Glass Lindsay Lakes Lower Reservoir
Glass Lindsay Lakes Lower Reservoir in Sweet Grass County, Montana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 522 acres.
- Area
- 522 acres
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Why Glass Lindsay Lakes Lower Reservoir 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 Glass Lindsay Lakes Lower Reservoir, 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.
Glass Lindsay Lakes Lower Reservoir is a 522-acre lake in Sweet Grass 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 Glass Lindsay Lakes Lower Reservoir
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 Glass Lindsay Lakes Lower Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Glass Lindsay Lakes Lower Reservoir in Sweet Grass 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 Glass Lindsay Lakes Lower Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 522 acres |
No bathymetric survey has been published for Glass Lindsay Lakes Lower Reservoir, so its depth is not documented here.
Fishing Glass Lindsay Lakes Lower Reservoir
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Frequently asked questions about Glass Lindsay Lakes Lower Reservoir
Where is Glass Lindsay Lakes Lower Reservoir?
- Glass Lindsay Lakes Lower Reservoir is a lake in Sweet Grass 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 Glass Lindsay Lakes Lower Reservoir?
- Glass Lindsay Lakes Lower Reservoir in Sweet Grass County, Montana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 522 acres.
Is Glass Lindsay Lakes Lower Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Glass Lindsay Lakes Lower Reservoir 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 Glass Lindsay Lakes Lower Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.