Cottonwood Reservoir fishing
Cottonwood Reservoir was last stocked on Oct. 8, 2026 with 1,000 channel catfish (4.2 in. average), according to the Utah DWR fish stocking report. It is a reservoir in Uintah County, Utah. From 2021 to 2026, DWR stocked 101,003 fish here, the 4th most of 55 stocked waters in Uintah County.
Recent stockings at Cottonwood Reservoir
- Oct. 8, 20261,000 channel catfish, 4.2 in. average
- April 27, 20261,250 tiger muskie, 2.6 in. average
- July 30, 20253,000 wiper, 2.0 in. average
- May 12, 20251,283 tiger muskie, 2.8 in. average
- July 18, 20242,970 wiper, 2.0 in. average
- April 16, 20241,248 tiger muskie, 2.0 in. average
Newest first, from the Utah DWR stocking report. Full stocking history.
Cottonwood Reservoir facts
- Last stocked
- Oct. 8, 2026 (33 days ago): 1,000 channel catfish
- Stockings in 2026
- 2 (2,250 fish): 1,250 tiger muskie and 1,000 channel catfish
- County
- Uintah County
- Size
- 210
- Stocked since 2021
- tiger muskie, wiper, rainbow trout, channel catfish, bluegill, sucker and brown trout
- Likely catch (DWR)
- tiger muskie
- Average size stocked
- 2.9 in. (2021 to 2026)
- County rank
- 4th most fish of 55 stocked waters in Uintah County since 2021
- Name in DWR report
- COTTONWOOD RES
- Nearest water
- Bullock Reservoir, 1.6 mi
- Rules
- Statewide rules (no water-specific entry in the 2026 guidebook)
Cottonwood Reservoir stocking report, last 12 months
| Oct. 8, 2026 | Channel catfish | 1,000 | 4.2 in. |
| April 27, 2026 | Tiger muskie | 1,250 | 2.6 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.
Cottonwood Reservoir stocking profile
- First record in the DWR report: July 2, 2002. Since then DWR has logged 68 stockings here in 20 different years, 595,540 fish in all.
- Species stocked 2021 to 2026, by share of fish: bluegill 40% (40,425 fish), sucker 27% (27,214 fish), wiper 16% (15,972 fish), tiger muskie 9% (8,885 fish), rainbow trout 5% (4,812 fish), brown trout 2% (1,995 fish) and channel catfish 2% (1,700 fish).
- Busiest months in the record: April (28% of records) and May (28% of records).
- Stocked fish averaged 2.9 in. from 2021 to 2026 (per-record averages ranged from 1.0 to 13.6 in.).
- Fish stocked 2021 to 2026: 101,003, the 4th most of 55 stocked waters in Uintah County and 63rd of 1,076 statewide.
- Nearest other water with a page: Bullock Reservoir, 1.6 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 Cottonwood Reservoir stocked?
Based on DWR stocking records, 2021 to 2025. Stocked in 5 of those 5 years.
2025 stocking: 2 records, first on May 12, last on July 30.
DWR does not publish stocking schedules. This is past stocking, not a promise. How we read patterns.
Cottonwood Reservoir stocking history by year
| Year | Records | Fish | Avg. length | Species |
|---|---|---|---|---|
| 2026 | 2 | 2,250 | 3.3 in. | Channel catfish, Tiger muskie |
| 2025 | 2 | 4,283 | 2.2 in. | Wiper, Tiger muskie |
| 2024 | 2 | 4,218 | 2.0 in. | Wiper, Tiger muskie |
| 2023 | 2 | 4,739 | 2.4 in. | Wiper, Tiger muskie |
| 2022 | 6 | 38,685 | 3.4 in. | Rainbow trout, Bluegill, Channel catfish, Wiper, Tiger muskie |
| 2021 | 7 | 46,828 | 2.5 in. | Rainbow trout, Sucker, Wiper, Tiger muskie, Brown trout, Bluegill |
| 2020 | 4 | 34,949 | 2.7 in. | Bluegill, Wiper, Rainbow trout, Tiger muskie |
| 2019 | 5 | 11,558 | 3.8 in. | Tiger muskie, Brown trout, Rainbow trout |
| 2018 | 3 | 55,722 | 0.7 in. | Wiper, Tiger muskie, Brown trout |
| 2017 | 4 | 24,943 | 2.7 in. | Channel catfish, Wiper, Brown trout, Tiger muskie |
| 2016 | 6 | 38,299 | 2.3 in. | Channel catfish, Wiper, Brown trout, Tiger muskie, Rainbow trout |
| 2015 | 4 | 70,008 | 1.0 in. | Channel catfish, Wiper, Tiger muskie, Brown trout |
| 2014 | 8 | 184,887 | 2.0 in. | Wiper, Rainbow trout, Tiger trout, Brown trout |
| 2012 | 1 | 100 | 1.8 in. | Tiger muskie |
| 2011 | 1 | 80 | 5.5 in. | Tiger muskie |
| 2006 | 5 | 31,084 | 4.9 in. | Tiger muskie, Rainbow trout |
| 2005 | 2 | 35,612 | 3.2 in. | Tiger muskie, Rainbow trout |
| 2004 | 1 | 1,502 | 12.7 in. | Tiger muskie |
| 2003 | 2 | 4,999 | 8.7 in. | Rainbow trout |
| 2002 | 1 | 794 | 4.0 in. | Tiger muskie |
All stocking records 2021 to Nov. 10, 2025 (19)
| July 30, 2025 | Wiper | 3,000 | 2.0 in. |
| May 12, 2025 | Tiger muskie | 1,283 | 2.8 in. |
| July 18, 2024 | Wiper | 2,970 | 2.0 in. |
| April 16, 2024 | Tiger muskie | 1,248 | 2.0 in. |
| Aug. 2, 2023 | Wiper | 3,495 | 2.5 in. |
| May 9, 2023 | Tiger muskie | 1,244 | 2.1 in. |
| Nov. 9, 2022 | Rainbow trout | 2,997 | 10.5 in. |
| Sept. 22, 2022 | Bluegill | 30,030 | 2.6 in. |
| Sept. 15, 2022 | Channel catfish | 700 | 13.6 in. |
| Aug. 1, 2022 | Wiper | 3,018 | 1.9 in. |
| May 24, 2022 | Tiger muskie | 1,250 | 1.4 in. |
| March 16, 2022 | Rainbow trout | 690 | 10.3 in. |
| Nov. 2, 2021 | Rainbow trout | 1,125 | 10.1 in. |
| Oct. 7, 2021 | Sucker | 27,214 | 2.2 in. |
| Aug. 12, 2021 | Wiper | 3,489 | 2.2 in. |
| July 15, 2021 | Tiger muskie | 1,332 | 4.1 in. |
| May 19, 2021 | Brown trout | 1,995 | 2.7 in. |
| May 12, 2021 | Bluegill | 10,395 | 2.7 in. |
| April 20, 2021 | Tiger muskie | 1,278 | 1.0 in. |
Fishing rules
No water-specific entry for Cottonwood 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.
Access and facilities
- Other activities
- Hiking, OHV or 4WD trails
Facility list from DWR Fish Utah. Check with the land manager before you go; facilities close seasonally.
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Cottonwood Reservoir questions
When is Cottonwood Reservoir stocked?
DWR does not publish stocking schedules. Past records show Cottonwood Reservoir was stocked in early to mid May (3 of the last 5 years), mid to late July (3 of the last 5 years) and early to mid August (3 of the last 5 years). The most recent stocking in the DWR report is dated Oct. 8, 2026.
What fish are in Cottonwood Reservoir?
DWR lists tiger muskie as likely catches and brown trout, channel catfish and wiper as possible. Since 2021 DWR has stocked tiger muskie, wiper, rainbow trout, channel catfish, bluegill, sucker and brown trout.
Stocking: Utah DWR fish stocking report, fetched Nov. 10, 2026. Size, program, species and facilities: DWR Fish Utah. 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.