Gelatt Lake
Albany County, Wyoming334 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Limited data
Gelatt Lake in Albany County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 30 µg/L. Surface area: 334 acres.
- Area
- 334 acres
- Phosphorus
- 30 µg/L
- Trend
- ↑ Improving
Stays via Stay22
Stays near Gelatt Lake
Compare lakeside cabins, hotels, and vacation rentals near Gelatt Lake in Albany 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 Gelatt Lake
Prices for Sep 11–13, 4 adults. Change dates on the map below.
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 →
Watch Gelatt Lake’s letter
Email me if this lake’s grade moves. Grades stay free.
Or email
Why Gelatt 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 Gelatt Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
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.
Gelatt Lake is a 334-acre lake in Albany County, Wyoming. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2013-09-11. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Gelatt Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Phosphorus 30 µg/L. TSI 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 30 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 334 acres |
No bathymetric survey has been published for Gelatt Lake, so its depth is not documented here.
Fishing Gelatt Lake
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↑ Improving | -5 µg/L/yr | 2 |
Reservoir Info (USACE NID)
Gelatt Lake is a man-made reservoir impounded by the Twin Buttes (completed 1972), built primarily for fish and wildlife pond on the Mortensen Draw; earth-type dam, 8 ft tall and 1,100 ft long.
- Surface area
- 334 ac
- Normal storage
- 3,912 ac-ft
- Max storage
- 6,250 ac-ft
- Hazard class
- Low
- Owner
- WYOMING GAME AND FISH COMMISSION
Source: USACE National Inventory of Dams, NID ID WY00088 · Operator website · Matched by proximity (0.97 km)
Graded lakes near Gelatt Lake
Gelatt Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Albany County
Frequently asked questions about Gelatt Lake
Where is Gelatt Lake?
- Gelatt Lake is a lake in Albany County, Wyoming. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Gelatt Lake?
- Gelatt Lake in Albany County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 30 µg/L. Surface area: 334 acres.
Is Gelatt Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Gelatt Lake across LakeQuality
More Wyoming Lake Rankings
Other Lakes in Wyoming
Eutrophic Lakes in Wyoming
Where this data comes from
3 measurements from 1 monitoring station, 2013. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- State of Wyoming Department of Environmental Quality Watershed Program
WYDEQ_WATERSHED3 samples · 2013
Analytical methods
- Total Phosphorus After Block Digestion
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.