Utah stocking report
UPPER STILLWATER RES
8 records Last stocked: July 16, 2026
The short answer
UPPER STILLWATER RES was last stocked on July 16, 2026: 7,319 Brook Trout (3.45 in avg).
Location map
UPPER STILLWATER RES location context
UPPER STILLWATER RESDuchesne County BUTTERFLY L Z-1Duchesne County MIRROR L Z-3Duchesne County MOOSEHORN L Z-4Duchesne County PASS L Z-5Duchesne County
Pins use the finest location published with the stocking record. County-level pins show area context, not an exact access point; confirm access and directions with the official agency source.
Agency records
Full stocking history
| Date | Species | Fish | Size |
|---|---|---|---|
| July 16, 2026 | Brook Trout | 7,319 | 3.45 in avg |
| June 2, 2026 | Brook Trout | 3,004 | 3.12 in avg |
| June 13, 2025 | Brook Trout | 3,001 | 3.63 in avg |
| August 19, 2024 | Brook Trout | 3,036 | 4.67 in avg |
| July 19, 2023 | Brook Trout | 3,004 | 3.09 in avg |
| July 29, 2020 | Brook Trout | 3,480 | 3.67 in avg |
| July 31, 2015 | Tiger Trout | 5,984 | 4.61 in avg |
| May 16, 2014 | Rainbow Trout | 848 | 9.21 in avg |
Records shown exactly as published by Utah Division of Wildlife Resources. An event missing here does not mean the water was not stocked - some plants go unreported or are published elsewhere.
Data source: Utah Division of Wildlife Resources. Last updated: .
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