Ross Lake
Ross Lake in Fremont County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 487 acres.
- Area
- 487 acres
Next lake in Fremont County
Swipe left or right on this bar to open the next or previous lake.
Why Ross 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 Ross 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 Wyoming DEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Ross Lake is a 487-acre lake in Fremont County, Wyoming.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Ross Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Ross 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 Ross Lake
Compare lakeside cabins, hotels, and vacation rentals near Ross Lake in Fremont County, Wyoming — 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 Ross Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Wyoming’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 487 acres |
No bathymetric survey has been published for Ross Lake, so its depth is not documented here.
Fishing Ross Lake
Nearby Lakes in Fremont County
Frequently asked questions about Ross Lake
Where is Ross Lake?
- Ross Lake is a lake in Fremont County, Wyoming. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Ross Lake?
- Ross Lake in Fremont County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 487 acres.
Is Ross Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Ross Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Ross Lake across LakeQuality
More Wyoming Lake Rankings
Other Lakes in Wyoming
Where this data comes from
Measurements for Ross Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.