Mumford Reservoir fishing
Mumford Reservoir was last stocked on Sept. 18, 2023 with 151 cutthroat trout (2.1 in. average), according to the Utah DWR fish stocking report. It is a reservoir in Beaver County, Utah. From 2021 to 2026, DWR stocked 630 fish here, the 14th most of 17 stocked waters in Beaver County.
Recent stockings at Mumford Reservoir
- Sept. 18, 2023151 cutthroat trout, 2.1 in. average
- July 11, 202353 tiger trout, 2.9 in. average
- Sept. 26, 2022163 cutthroat trout, 2.4 in. average
- July 7, 202245 tiger trout, 2.8 in. average
- Sept. 23, 2021169 cutthroat trout, 2.5 in. average
- July 6, 202149 tiger trout, 3.0 in. average
Newest first, from the Utah DWR stocking report. Full stocking history.
Mumford Reservoir facts
- Last stocked
- Sept. 18, 2023 (1,149 days ago): 151 cutthroat trout
- Stockings in 2026
- None recorded yet in 2026
- County
- Beaver County
- Stocked since 2021
- cutthroat trout and tiger trout
- Average size stocked
- 2.5 in. (2021 to 2026)
- County rank
- 14th most fish of 17 stocked waters in Beaver County since 2021
- Name in DWR report
- MUMFORD RES
- Nearest water
- Senceball, 0.6 mi
- Rules
- Statewide rules (no water-specific entry in the 2026 guidebook)
Mumford Reservoir stocking report, last 12 months
No stocking recorded in the last 12 months. The most recent record is dated Sept. 18, 2023.
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.
Mumford Reservoir stocking profile
- First record in the DWR report: Oct. 11, 2002. Since then DWR has logged 24 stockings here in 20 different years, 7,302 fish in all.
- Species stocked 2021 to 2026, by share of fish: cutthroat trout 77% (483 fish) and tiger trout 23% (147 fish).
- Busiest months in the record: September (67% of records) and July (17% of records).
- Stocked fish averaged 2.5 in. from 2021 to 2026 (per-record averages ranged from 2.1 to 3.0 in.).
- Fish stocked 2021 to 2026: 630, the 14th most of 17 stocked waters in Beaver County and 884th of 1,076 statewide.
- Nearest other water with a page: Senceball, 0.6 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 Mumford Reservoir stocked?
Based on DWR stocking records, 2021 to 2025. Stocked in 3 of those 5 years.
In past years, stocking here had usually started by this time of year (3 of the last 5 years). No stocking has been recorded here yet in 2026.
DWR does not publish stocking schedules. This is past stocking, not a promise. How we read patterns.
Mumford Reservoir stocking history by year
| Year | Records | Fish | Avg. length | Species |
|---|---|---|---|---|
| 2023 | 2 | 204 | 2.3 in. | Cutthroat trout, Tiger trout |
| 2022 | 2 | 208 | 2.5 in. | Cutthroat trout, Tiger trout |
| 2021 | 2 | 218 | 2.6 in. | Cutthroat trout, Tiger trout |
| 2020 | 2 | 208 | 2.5 in. | Cutthroat trout, Tiger trout |
| 2019 | 1 | 487 | 1.8 in. | Cutthroat trout |
| 2018 | 1 | 454 | 2.3 in. | Cutthroat trout |
| 2017 | 1 | 428 | 2.1 in. | Cutthroat trout |
| 2016 | 1 | 416 | 1.9 in. | Cutthroat trout |
| 2015 | 1 | 462 | 2.0 in. | Cutthroat trout |
| 2014 | 1 | 436 | 1.9 in. | Cutthroat trout |
| 2013 | 1 | 399 | 2.3 in. | Cutthroat trout |
| 2012 | 1 | 412 | 2.4 in. | Cutthroat trout |
| 2011 | 1 | 434 | 1.7 in. | Cutthroat trout |
| 2010 | 1 | 428 | 2.1 in. | Cutthroat trout |
| 2009 | 1 | 40 | 3.7 in. | Cutthroat trout |
| 2008 | 1 | 421 | 2.2 in. | Cutthroat trout |
| 2007 | 1 | 428 | 1.5 in. | Cutthroat trout |
| 2005 | 1 | 402 | 1.8 in. | Cutthroat trout |
| 2003 | 1 | 397 | 1.7 in. | Cutthroat trout |
| 2002 | 1 | 420 | 2.0 in. | Cutthroat trout |
All stocking records 2021 to Nov. 10, 2025 (6)
| Sept. 18, 2023 | Cutthroat trout | 151 | 2.1 in. |
| July 11, 2023 | Tiger trout | 53 | 2.9 in. |
| Sept. 26, 2022 | Cutthroat trout | 163 | 2.4 in. |
| July 7, 2022 | Tiger trout | 45 | 2.8 in. |
| Sept. 23, 2021 | Cutthroat trout | 169 | 2.5 in. |
| July 6, 2021 | Tiger trout | 49 | 3.0 in. |
Fishing rules
No water-specific entry for Mumford 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.
Email me when Mumford Reservoir is stocked
Email me when Mumford Reservoir shows up in the DWR stocking report. You confirm by email first and can unsubscribe in one click.
"Often stocked around now" heads-ups come from past records only, never a promise. We use your email only for these alerts. Privacy.
Mumford Reservoir questions
When is Mumford Reservoir stocked?
DWR does not publish stocking schedules. Past records show Mumford Reservoir was stocked in early to mid July (3 of the last 5 years) and mid to late September (3 of the last 5 years). The most recent stocking in the DWR report is dated Sept. 18, 2023.
What fish are in Mumford Reservoir?
Since 2021 DWR has stocked cutthroat trout and tiger trout.
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.