Lake Frances
Lake Frances in Pondera County, Montana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 5252 acres.
- Area
- 5,252 acres
- Public access
- Yes
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Why Lake Frances 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 Lake Frances, 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.
Lake Frances is a 5,252-acre lake in Pondera County, Montana. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Montana DEQ, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Frances 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 Lake Frances
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 Lake Frances
Compare lakeside cabins, hotels, and vacation rentals near Lake Frances in Pondera 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 Lake Frances
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 5,252 acres |
| Public Access | Yes |
No bathymetric survey has been published for Lake Frances, so its depth is not documented here.
Recreation & Access
- ValierPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Frances
Nearby Lakes in Pondera County
Frequently asked questions about Lake Frances
Where is Lake Frances?
- Lake Frances is a lake in Pondera 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 Lake Frances?
- Lake Frances in Pondera County, Montana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 5252 acres.
Is Lake Frances safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Frances is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Lake Frances?
- Lake Frances has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Valier. Public access is listed as yes.
Explore Lake Frances across LakeQuality
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Where this data comes from
Measurements for Lake Frances come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory