Upper Box Creek Reservoir fishing

Upper Box Creek Reservoir was last stocked on April 9, 2026 with 312 rainbow trout (10.1 in. average), according to the Utah DWR fish stocking report. It is a reservoir in Piute County, Utah. From 2021 to 2026, DWR stocked 20,960 fish here, the 6th most of 8 stocked waters in Piute County.

Stocking data fetched Nov. 10, 2026.
Last stockedApril 9, 2026215 days ago, rainbow trout
Fish stocked in 20263121 record
Records since 202117History back to 2002
Stocked species4rainbow trout, tiger trout and splake

Recent stockings at Upper Box Creek Reservoir

  1. April 9, 2026312 rainbow trout, 10.1 in. average
  2. June 23, 20251,266 tiger trout, 3.7 in. average
  3. May 15, 20252,542 rainbow trout, 10.2 in. average
  4. July 30, 2024512 splake, 2.7 in. average
  5. July 11, 20241,259 tiger trout, 5.5 in. average
  6. May 8, 20242,633 rainbow trout, 11.5 in. average

Newest first, from the Utah DWR stocking report. Full stocking history.

Upper Box Creek Reservoir facts

Last stocked
April 9, 2026 (215 days ago): 312 rainbow trout
Stockings in 2026
1 (312 fish): 312 rainbow trout
County
Piute County
Stocked since 2021
rainbow trout, tiger trout, splake and cutthroat trout
Average size stocked
7.3 in. (2021 to 2026)
County rank
6th most fish of 8 stocked waters in Piute County since 2021
Name in DWR report
BOX CR RES, UPPER
Nearest water
Lower Box Creek Reservoir, 0.8 mi
Rules
Statewide rules (no water-specific entry in the 2026 guidebook)

Upper Box Creek Reservoir stocking report, last 12 months

Upper Box Creek Reservoir: DWR stocking records since Nov. 10, 2025, newest first.
April 9, 2026 Rainbow trout 312 10.1 in.

Source: Utah DWR fish stocking report. Stocking data fetched Nov. 10, 2026; newest record dated Nov. 19, 2026. DWR posts stockings after they happen and does not publish schedules.

Upper Box Creek Reservoir stocking profile

  • First record in the DWR report: May 13, 2002. Since then DWR has logged 72 stockings here in 25 different years, 114,490 fish in all.
  • Species stocked 2021 to 2026, by share of fish: rainbow trout 53% (11,097 fish), tiger trout 27% (5,595 fish), cutthroat trout 15% (3,143 fish) and splake 5% (1,125 fish).
  • Busiest months in the record: July (35% of records) and May (29% of records).
  • Stocked fish averaged 7.3 in. from 2021 to 2026 (per-record averages ranged from 1.9 to 12.2 in.). The yearly average was 7.6 in. in 2021 and 8.1 in. in 2025.
  • Fish stocked 2021 to 2026: 20,960, the 6th most of 8 stocked waters in Piute County and 223rd of 1,076 statewide.
  • Nearest other water with a page: Lower Box Creek Reservoir, 0.8 mi away.

Computed from Utah DWR stocking records (fish counts and average lengths as DWR reports them). Past stocking is history, not a schedule.

When is Upper Box Creek Reservoir stocked?

Based on DWR stocking records, 2021 to 2025. Stocked in 5 of those 5 years.

early to mid Maystocked in 3 of the last 5 years, mostly rainbow trout.
late June to early Julystocked in 3 of the last 5 years, mostly tiger trout and splake.

2025 stocking: 2 records, first on May 15, last on June 23.

Years with a stocking in each third of the month, 2021 to 2025:012345

DWR does not publish stocking schedules. This is past stocking, not a promise. How we read patterns.

Upper Box Creek Reservoir stocking history by year

Upper Box Creek Reservoir: DWR stocking records per year. Fish counts are totals of all records that year; average length is weighted by the number of fish.
YearRecordsFishAvg. lengthSpecies
2026131210.1 in.Rainbow trout
202523,8088.1 in.Tiger trout, Rainbow trout
202444,4048.7 in.Splake, Tiger trout, Rainbow trout
202347,4225.2 in.Cutthroat trout, Splake, Tiger trout, Rainbow trout
202243,8838.7 in.Tiger trout, Splake, Rainbow trout
202121,1317.6 in.Tiger trout, Rainbow trout
202044,7597.5 in.Tiger trout, Splake, Rainbow trout
201938,8853.8 in.Cutthroat trout, Tiger trout, Rainbow trout
2018512,0313.9 in.Cutthroat trout, Tiger trout, Splake, Rainbow trout
2017413,5303.3 in.Cutthroat trout, Splake, Rainbow trout, Tiger trout
201633,6066.4 in.Brook trout, Tiger trout, Rainbow trout
201522,8417.2 in.Tiger trout, Rainbow trout
201422,7527.6 in.Tiger trout, Rainbow trout
201323,5245.7 in.Brook trout, Rainbow trout
201232,9696.4 in.Brook trout, Rainbow trout
201133,5827.2 in.Brook trout, Rainbow trout
201034,3617.2 in.Rainbow trout, Brook trout
200934,1127.7 in.Rainbow trout, Brook trout
200844,2157.4 in.Rainbow trout, Brook trout
200734,2348.4 in.Brook trout, Rainbow trout
200633,0626.9 in.Brook trout, Rainbow trout
200523,0666.7 in.Brook trout, Rainbow trout
200423,4997.6 in.Brook trout, Rainbow trout
200323,5016.7 in.Brook trout, Rainbow trout
200225,0015.7 in.Brook trout, Rainbow trout
All stocking records 2021 to Nov. 10, 2025 (16)
Upper Box Creek Reservoir: DWR stocking records 2021 to Nov. 10, 2025.
June 23, 2025 Tiger trout 1,266 3.7 in.
May 15, 2025 Rainbow trout 2,542 10.2 in.
July 30, 2024 Splake 512 2.7 in.
July 11, 2024 Tiger trout 559 8.1 in.
July 11, 2024 Tiger trout 700 3.4 in.
May 8, 2024 Rainbow trout 2,633 11.5 in.
Sept. 12, 2023 Cutthroat trout 3,143 1.9 in.
July 5, 2023 Splake 509 3.6 in.
July 5, 2023 Tiger trout 1,251 3.2 in.
May 22, 2023 Rainbow trout 2,519 10.8 in.
July 1, 2022 Tiger trout 1,260 4.6 in.
July 1, 2022 Splake 104 3.6 in.
June 15, 2022 Rainbow trout 1,255 10.1 in.
May 23, 2022 Rainbow trout 1,264 11.7 in.
July 14, 2021 Tiger trout 559 2.9 in.
May 18, 2021 Rainbow trout 572 12.2 in.

Fishing rules

No water-specific entry for Upper Box Creek Reservoir in the 2026 guidebook: statewide limits apply unless a group entry (such as a drainage) covers it.

From the 2026 Utah Fishing Guidebook, in our own words. Rules can change mid-year: check wildlife.utah.gov/guidebooks before fishing.

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Upper Box Creek Reservoir questions

When is Upper Box Creek Reservoir stocked?

DWR does not publish stocking schedules. Past records show Upper Box Creek Reservoir was stocked in early to mid May (3 of the last 5 years) and late June to early July (3 of the last 5 years). The most recent stocking in the DWR report is dated April 9, 2026.

What fish are in Upper Box Creek Reservoir?

Since 2021 DWR has stocked rainbow trout, tiger trout, splake and cutthroat trout.

Sources

Stocking: Utah DWR fish stocking report, fetched Nov. 10, 2026. Location: Utah DWR, USGS NHD. Rules: 2026 Utah Fishing Guidebook. Page built Nov. 10, 2026. Found an error? Tell us. Verify rules with DWR before fishing.