Yearns Reservoir (Manti Mountains) fishing
Yearns Reservoir (Manti Mountains) was last stocked on Aug. 3, 2026 with 615 rainbow trout (10.7 in. average), according to the Utah DWR fish stocking report. It is a 3-acre reservoir in Sanpete County, Utah. From 2021 to 2026, DWR stocked 35,041 fish here, the 8th most of 71 stocked waters in Sanpete County.
Yearns Reservoir (Manti Mountains) stocking report, last 12 months
| Aug. 3, 2026 | Rainbow trout | 615 | 10.7 in. |
| June 1, 2026 | Tiger trout | 359 | 10.1 in. |
| June 1, 2026 | Rainbow trout | 903 | 9.9 in. |
| May 20, 2026 | Rainbow trout | 1,003 | 9.0 in. |
| May 12, 2026 | Rainbow trout | 1,000 | 10.0 in. |
| May 12, 2026 | Tiger trout | 504 | 9.3 in. |
| April 21, 2026 | Tiger trout | 999 | 8.6 in. |
| April 21, 2026 | Rainbow trout | 999 | 9.8 in. |
Source: Utah DWR fish stocking report. Stocking data fetched Sept. 25, 2026; newest record dated Sept. 23, 2026. DWR posts stockings after they happen and does not publish schedules.
When is Yearns Reservoir (Manti Mountains) stocked?
Based on DWR stocking records, 2021 to 2025. Stocked in 5 of those 5 years.
2025 stocking: 8 records, first on April 16, last on Sept. 11.
DWR does not publish stocking schedules. Patterns are based on past stocking records and are not a promise of future stocking. Weather, water conditions and hatchery supply change plans. How we read patterns.
Yearns Reservoir (Manti Mountains) stocking profile
- First record in the DWR report: May 23, 2002. Since then DWR has logged 190 stockings here in 25 different years, 171,585 fish in all.
- Species stocked 2021 to 2026, by share of fish: rainbow trout 80% (28,138 fish) and tiger trout 20% (6,903 fish).
- Busiest months in the record: June (37% of records) and May (30% of records).
- Stocked fish averaged 10.4 in. from 2021 to 2026 (per-record averages ranged from 6.8 to 12.3 in.). The yearly average was 10.5 in. in 2021 and 11.3 in. in 2025.
- Fish stocked 2021 to 2026: 35,041, the 8th most of 71 stocked waters in Sanpete County and 148th of 1,068 statewide.
- Nearest other water with a page: Six Mile Creek, 2.8 mi away.
Computed from Utah DWR stocking records (fish counts and average lengths as DWR reports them). Past stocking is history, not a schedule.
Yearns Reservoir (Manti Mountains) stocking history by year
| Year | Records | Fish | Avg. length | Species |
|---|---|---|---|---|
| 2026 | 8 | 6,382 | 9.6 in. | Rainbow trout, Tiger trout |
| 2025 | 8 | 6,158 | 11.3 in. | Tiger trout, Rainbow trout |
| 2024 | 8 | 7,005 | 10.2 in. | Tiger trout, Rainbow trout |
| 2023 | 8 | 7,502 | 10.4 in. | Tiger trout, Rainbow trout |
| 2022 | 4 | 3,778 | 10.6 in. | Tiger trout, Rainbow trout |
| 2021 | 4 | 4,216 | 10.5 in. | Rainbow trout |
| 2020 | 6 | 6,521 | 9.8 in. | Rainbow trout |
| 2019 | 7 | 5,696 | 10.2 in. | Rainbow trout |
| 2018 | 9 | 7,026 | 10.1 in. | Rainbow trout |
| 2017 | 6 | 7,014 | 9.4 in. | Rainbow trout |
| 2016 | 9 | 7,048 | 10.3 in. | Rainbow trout |
| 2015 | 11 | 7,031 | 11.1 in. | Rainbow trout |
| 2014 | 12 | 7,101 | 9.9 in. | Rainbow trout |
| 2013 | 11 | 7,156 | 11.0 in. | Rainbow trout |
| 2012 | 13 | 7,874 | 9.9 in. | Rainbow trout |
| 2011 | 5 | 7,049 | 9.8 in. | Rainbow trout |
| 2010 | 7 | 7,999 | 9.9 in. | Rainbow trout |
| 2009 | 6 | 7,999 | 11.2 in. | Rainbow trout |
| 2008 | 6 | 8,001 | 9.7 in. | Rainbow trout |
| 2007 | 7 | 8,006 | 9.9 in. | Rainbow trout |
| 2006 | 7 | 5,499 | 10.3 in. | Rainbow trout |
| 2005 | 5 | 5,505 | 10.4 in. | Rainbow trout |
| 2004 | 5 | 7,004 | 10.0 in. | Rainbow trout |
| 2003 | 5 | 7,007 | 10.1 in. | Rainbow trout |
| 2002 | 13 | 10,008 | 9.3 in. | Rainbow trout |
All stocking records 2021 to Sept. 24, 2025 (32)
| Sept. 11, 2025 | Tiger trout | 375 | 11.9 in. |
| Aug. 20, 2025 | Rainbow trout | 1,020 | 11.1 in. |
| June 12, 2025 | Tiger trout | 390 | 10.2 in. |
| June 12, 2025 | Rainbow trout | 989 | 10.0 in. |
| May 21, 2025 | Tiger trout | 504 | 10.9 in. |
| May 21, 2025 | Rainbow trout | 892 | 12.3 in. |
| April 16, 2025 | Rainbow trout | 994 | 11.9 in. |
| April 16, 2025 | Rainbow trout | 994 | 11.9 in. |
| July 10, 2024 | Tiger trout | 500 | 10.9 in. |
| July 10, 2024 | Rainbow trout | 700 | 10.8 in. |
| July 10, 2024 | Rainbow trout | 300 | 9.4 in. |
| June 3, 2024 | Rainbow trout | 998 | 10.6 in. |
| May 20, 2024 | Rainbow trout | 1,501 | 10.4 in. |
| May 20, 2024 | Tiger trout | 500 | 9.7 in. |
| May 8, 2024 | Tiger trout | 504 | 10.1 in. |
| May 8, 2024 | Rainbow trout | 2,002 | 9.9 in. |
| July 13, 2023 | Tiger trout | 998 | 11.1 in. |
| July 10, 2023 | Rainbow trout | 1,005 | 9.4 in. |
| June 22, 2023 | Rainbow trout | 999 | 9.2 in. |
| May 30, 2023 | Tiger trout | 500 | 10.3 in. |
| May 30, 2023 | Rainbow trout | 1,500 | 10.8 in. |
| May 18, 2023 | Rainbow trout | 1,000 | 10.8 in. |
| May 18, 2023 | Tiger trout | 500 | 10.2 in. |
| May 18, 2023 | Rainbow trout | 1,000 | 10.8 in. |
| Oct. 17, 2022 | Tiger trout | 270 | 6.8 in. |
| June 10, 2022 | Rainbow trout | 999 | 11.2 in. |
| June 1, 2022 | Rainbow trout | 1,007 | 11.0 in. |
| May 11, 2022 | Rainbow trout | 1,502 | 10.6 in. |
| June 30, 2021 | Rainbow trout | 750 | 10.8 in. |
| June 2, 2021 | Rainbow trout | 750 | 10.8 in. |
| May 5, 2021 | Rainbow trout | 1,221 | 10.4 in. |
| April 29, 2021 | Rainbow trout | 1,495 | 10.3 in. |
Fishing rules
The 2026 Utah Fishing Guidebook lists no water-specific rules for Yearns Reservoir (Manti Mountains) under that name, so statewide rules apply unless DWR posts a change. Some waters are covered by a group entry (for example a drainage or its tributaries).
Rules summarized in our own words from the 2026 Utah Fishing Guidebook. DWR can change rules mid-year: check the current guidebook and its updates at wildlife.utah.gov/guidebooks before fishing. See statewide limits.
Access and facilities
- Other activities
- Hiking, OHV or 4WD trails, Wildlife watching
- Facilities
- Drinking water, Fire rings, Picnic tables, Restrooms
- Camping
- Primitive tent camping, RV camping
Facility list from DWR Fish Utah. Check with the land manager before you go; facilities close seasonally.
Email me when Yearns Reservoir (Manti Mountains) is stocked
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"Was stocked" alerts come from new rows in the DWR stocking report. "Often stocked around now" heads-ups come from past stocking records only. DWR does not publish stocking schedules, so a heads-up is never a promise. We store your email only for these alerts; ask us to delete it at [email protected]. Privacy.
Yearns Reservoir (Manti Mountains) questions
When is Yearns Reservoir (Manti Mountains) stocked?
DWR does not publish stocking schedules. Past records show Yearns Reservoir (Manti Mountains) was stocked in mid May (3 of the last 5 years), early June (3 of the last 5 years) and mid to late June (3 of the last 5 years). The most recent stocking in the DWR report is dated Aug. 3, 2026.
What fish are in Yearns Reservoir (Manti Mountains)?
DWR lists rainbow trout as likely catches. Since 2021 DWR has stocked rainbow trout and tiger trout.
What are the fishing limits at Yearns Reservoir (Manti Mountains)?
The 2026 guidebook lists no water-specific rules under this name, so statewide limits apply unless DWR posts a change. See our statewide limits page and check the guidebook.
Stocking: Utah DWR fish stocking report, fetched Sept. 25, 2026. Size, program, species and facilities: DWR Fish Utah. Location: Utah DWR, USGS NHD. Rules: 2026 Utah Fishing Guidebook. Page built Sept. 24, 2026. Found an error? [email protected]. Verify rules with DWR before fishing.