Duchesne County · Utah
Upper Stillwater Res Trout Stocking Schedule & Alerts
Feed freshness
Latest: August 12, 2026
Page data last checked or changed
- Fish recorded
- 11,084
- Stocking batches
- 3
- Stocking days
- 3
- Days since latest
- 32
Recorded pattern
How often has Upper Stillwater Res been stocked?
The indexed history contains 3 reported batches across 3 distinct stocking days, totaling 11,084 trout.
Distinct stocking dates were about 36 days apart on average across the indexed period.
The record spans through . Agency reporting can lag field work and may later be corrected.
Indexed totals by year
- 2026
- 11,084 fish · 3 batches
Species mix
Share of fish in this water's indexed trout records.
Fish per reported batch, oldest to newest (up to 12 batches).
Dates and quantities
Recent and historical stockings
| Date stocked | Species | Fish | Avg. length |
|---|---|---|---|
| Brook trout | 761 | 5.12 in | |
| Brook trout | 7,319 | 3.45 in | |
| Brook trout | 3,004 | 3.12 in |
Nearest indexed stocking alternatives
Ordered by same or neighboring county, then by latest stocking. Utah DWR does not include coordinates in this feed, so this is not a mileage or drive-time estimate.
Mirror L Z-3
13,904 fish in 15 reported batches; latest August 31, 2026.
Butterfly L Z-1
4,745 fish in 16 reported batches; latest August 31, 2026.
Pass L Z-5
4,497 fish in 13 reported batches; latest August 31, 2026.
Moosehorn L Z-4
3,338 fish in 11 reported batches; latest August 17, 2026.
Rock Cr, S Fk
3,370 fish in 1 reported batch; latest August 12, 2026.
Not enough history for a standalone page yet.
Common questions
Upper Stillwater Res stocking FAQ
How often is Upper Stillwater Res stocked with trout?
Across the indexed period, distinct Upper Stillwater Res stocking dates were about 36 days apart on average. The record holds 3 reported batches across 3 distinct stocking days, totaling 11,084 fish.
When was Upper Stillwater Res last stocked?
Utah DWR last reported 761 Brook trout at Upper Stillwater Res on August 12, 2026. This reflects a completed stocking record, not a promised future schedule, and agency reporting can lag field work.
What trout species are stocked in Upper Stillwater Res?
The indexed records for Upper Stillwater Res include Brook trout. The most-stocked is Brook trout at about 100% of stocked fish.
Can I get an alert when Upper Stillwater Res is stocked?
Yes. TroutNotify emails you when Utah DWR reports a new Upper Stillwater Res stocking. Add the water to your watchlist and you are notified as the feed updates.
Where does this Upper Stillwater Res stocking data come from?
Every figure is derived from the Utah Division of Wildlife Resources Fish Stocking Report, the official public source. You can verify each batch against the DWR report linked on this page.
Stocking alerts
Know when Upper Stillwater Res gets stocked next.
Save a free preview watchlist. Official reports are checked hourly when available. The $39/year email plan requires delivery availability; preview watchlists send no alerts.
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Totals are calculated from TroutNotify's imported Utah DWR trout rows. They may change when the agency adds or corrects its report. Stocking data does not replace fishing regulations or access guidance.