Little Sage Creek Reservoir
Carbon County, Wyoming132 acresView mapDirections
Wyoming DEQ publishes the water-quality measurements for Little Sage Creek Reservoir. Here is what has been measured.
- Limited data
Little Sage Creek Reservoir in Carbon County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 75 µg/L. Surface area: 132.3 acres.
Little Sage Creek Reservoir is a 132-acre lake in Carbon County, Wyoming.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2013-07-23. 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 Little Sage Creek Reservoir 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 Little Sage Creek Reservoir
These are the measurements Wyoming DEQ publishes for Little Sage Creek Reservoir, 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 75 µg/L. TSI 66.
| 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 | 75µg/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. | 66 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Little Sage Creek Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
132 acres
No bathymetric survey has been published for Little Sage Creek Reservoir, so its depth is not documented here.
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Fishing Little Sage Creek Reservoir
Reservoir Info (USACE NID)
Little Sage Creek Reservoir is a man-made reservoir impounded by the Little Sage Creek Reservoir (completed 1969), built primarily for debris control on the Little Sage Creek; gravity-type dam, 26 ft tall and 934 ft long.
- Surface area
- 132.3 ac
- Normal storage
- 0.51 ac-ft
- Max storage
- 380 ac-ft
- Hazard class
- High
- Owner
- DOI BLM
Source: USACE National Inventory of Dams, NID ID WY01479 · Operator website
Nearby Lakes in Carbon County
Frequently asked questions about Little Sage Creek Reservoir
Where is Little Sage Creek Reservoir?
- Little Sage Creek Reservoir is a lake in Carbon County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Little Sage Creek Reservoir?
- Little Sage Creek Reservoir in Carbon County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 75 µg/L. Surface area: 132.3 acres.
Is Little Sage Creek Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
2 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_WATERSHED2 samples · 2013
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.