Pilot Butte Reservoir Lpd
Fremont County, Wyoming900 acresView mapDirections
Wyoming DEQ publishes the water-quality measurements for Pilot Butte Reservoir Lpd. Here is what has been measured.
- Public access
- Limited data
Pilot Butte Reservoir Lpd in Fremont County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 30 µg/L. Surface area: 900 acres.
Pilot Butte Reservoir Lpd is a 900-acre lake in Fremont County, Wyoming. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2014-09-08. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Pilot Butte Reservoir Lpd is safe to swim in today is a call for the Wyoming Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Pilot Butte Reservoir Lpd
These are the measurements Wyoming DEQ publishes for Pilot Butte Reservoir Lpd, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 30 µg/L. TSI 53.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 30µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 53 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Pilot Butte Reservoir Lpd
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
900 acres
Public access
Yes
Listed by Wyoming DEQ
No bathymetric survey has been published for Pilot Butte Reservoir Lpd, so its depth is not documented here.
Stays via Stay22
Stays near Pilot Butte Reservoir Lpd
Compare lakeside cabins, hotels, and vacation rentals near Pilot Butte Reservoir Lpd 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 Pilot Butte Reservoir Lpd
Prices for Oct 30–Nov 1, 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 trip? Cabins and lodging at Pilot Butte Reservoir Lpd → · more Wyoming lake trips
Follow Pilot Butte Reservoir Lpd’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Pilot Butte Reservoir Lpd
Water quality readings over time
2 seasons of samples on record (2013–2014). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Worsening+10 µg/L/yr2 years
Reservoir Info (USACE NID)
Pilot Butte Reservoir Lpd is a man-made reservoir impounded by the Pilot Butte Embankment 3 (completed 1926), built primarily for irrigation on the Wyoming Canal; earth-type dam, 12 ft tall and 3,400 ft long.
- Surface area
- 900 ac
- Normal storage
- 33,700 ac-ft
- Max storage
- 36,900 ac-ft
- Drainage area
- 9 sq mi
- Hazard class
- High
- Owner
- BUREAU OF RECLAMATION
Source: USACE National Inventory of Dams, NID ID WY01381 · Operator website · Matched by proximity (0.61 km)
Nearby Lakes in Fremont County
Frequently asked questions about Pilot Butte Reservoir Lpd
Where is Pilot Butte Reservoir Lpd?
- Pilot Butte Reservoir Lpd is a lake in Fremont County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Pilot Butte Reservoir Lpd?
- Pilot Butte Reservoir Lpd in Fremont County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 30 µg/L. Surface area: 900 acres.
Is Pilot Butte Reservoir Lpd safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Can I fish at Pilot Butte Reservoir Lpd?
- Public access to Pilot Butte Reservoir Lpd is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Wyoming's fish and wildlife agency, so check its current regulations before you go.
Explore Pilot Butte Reservoir Lpd across LakeQuality
More lakes in Wyoming
Other Lakes in Wyoming
Eutrophic Lakes in Wyoming
Where this data comes from
5 measurements from 1 monitoring station, 2013–2014. 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_WATERSHED5 samples · 2013–2014
Analytical methods
- Total Phosphorus After Block Digestion
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.