Kolob Reservoir fishing
Kolob Reservoir was last stocked on Sept. 17, 2026 with 1,777 rainbow trout and 513 tiger trout (9.7 in. average), according to the Utah DWR fish stocking report. It is a 250-acre reservoir in Washington County, Utah, listed by DWR as a Blue Ribbon Fishery. From 2021 to 2026, DWR stocked 47,666 fish here, the 4th most of 17 stocked waters in Washington County.
Latest fishing report
Fall outlook: trout feed more as water cools, with fair to good fishing on flies and lures. Limit is 2 trout under 15 or over 22 inches; release all from 15 to 22. From the second Saturday of September to Dec. 31, only flies and lures are legal. Camping fees apply and boats are held to 10 horsepower.
Our summary of the Utah DWR fishing report dated Aug. 17, 2026, in our own words. Read the original on DWR Fish Utah.
Kolob Reservoir stocking report, last 12 months
| Sept. 17, 2026 | Rainbow trout | 1,777 | 10.8 in. |
| Sept. 17, 2026 | Tiger trout | 513 | 5.7 in. |
| May 28, 2026 | Cutbow | 11,600 | 2.1 in. |
| May 28, 2026 | Rainbow trout | 5,025 | 3.9 in. |
| May 28, 2026 | Rainbow trout | 4,995 | 6.1 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 Kolob Reservoir stocked?
Based on DWR stocking records, 2021 to 2025. Stocked in 4 of those 5 years.
Stocking dates moved around from year to year, so no single window repeats in 3 or more of the last 5 years.
2025 stocking: 4 records, first on June 9.
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.
Kolob Reservoir stocking profile
- First record in the DWR report: May 27, 2002. Since then DWR has logged 54 stockings here in 21 different years, 182,113 fish in all.
- Species stocked 2021 to 2026, by share of fish: rainbow trout 67% (32,027 fish), cutbow 24% (11,600 fish), tiger trout 7% (3,537 fish) and brook trout 1% (502 fish).
- Busiest months in the record: June (37% of records) and May (26% of records).
- Stocked fish averaged 4.1 in. from 2021 to 2026 (per-record averages ranged from 2.1 to 10.8 in.).
- Fish stocked 2021 to 2026: 47,666, the 4th most of 17 stocked waters in Washington County and 115th of 1,068 statewide.
- Nearest other water with a page: Woods Ranch Pond (Kids Pond), 12.8 mi away.
Computed from Utah DWR stocking records (fish counts and average lengths as DWR reports them). Past stocking is history, not a schedule.
Kolob Reservoir stocking history by year
| Year | Records | Fish | Avg. length | Species |
|---|---|---|---|---|
| 2026 | 5 | 23,910 | 4.0 in. | Rainbow trout, Tiger trout, Cutbow |
| 2025 | 4 | 6,523 | 3.4 in. | Rainbow trout, Tiger trout |
| 2024 | 5 | 10,776 | 5.5 in. | Brook trout, Tiger trout, Rainbow trout |
| 2023 | 1 | 1,002 | 3.0 in. | Tiger trout |
| 2021 | 1 | 5,455 | 3.0 in. | Rainbow trout |
| 2020 | 2 | 5,564 | 3.3 in. | Brook trout, Rainbow trout |
| 2019 | 12 | 42,534 | 4.9 in. | Cutthroat trout, Tiger trout, Brook trout, Rainbow trout |
| 2018 | 2 | 5,571 | 3.8 in. | Rainbow trout, Brook trout |
| 2017 | 2 | 5,522 | 3.6 in. | Brook trout, Rainbow trout |
| 2016 | 1 | 5,224 | 3.4 in. | Rainbow trout |
| 2015 | 1 | 5,025 | 5.5 in. | Rainbow trout |
| 2014 | 2 | 7,952 | 5.6 in. | Rainbow trout, Cutthroat trout |
| 2013 | 3 | 15,124 | 5.9 in. | Rainbow trout, Cutthroat trout |
| 2012 | 1 | 3,109 | 7.1 in. | Cutthroat trout |
| 2011 | 3 | 8,149 | 4.5 in. | Cutthroat trout, Rainbow trout |
| 2010 | 3 | 5,714 | 6.1 in. | Cutthroat trout, Rainbow trout |
| 2008 | 1 | 5,076 | 6.8 in. | Cutthroat trout |
| 2007 | 1 | 5,330 | 3.6 in. | Rainbow trout |
| 2005 | 1 | 5,007 | 5.3 in. | Rainbow trout |
| 2004 | 1 | 2,500 | 5.4 in. | Rainbow trout |
| 2002 | 2 | 7,046 | 2.4 in. | Cutthroat trout, Rainbow trout |
All stocking records 2021 to Sept. 24, 2025 (11)
| June 9, 2025 | Rainbow trout | 511 | 10.7 in. |
| June 9, 2025 | Rainbow trout | 353 | 2.5 in. |
| June 9, 2025 | Rainbow trout | 4,652 | 2.6 in. |
| June 9, 2025 | Tiger trout | 1,007 | 3.3 in. |
| Aug. 15, 2024 | Brook trout | 502 | 3.4 in. |
| July 12, 2024 | Tiger trout | 1,015 | 3.4 in. |
| July 12, 2024 | Rainbow trout | 5,003 | 3.0 in. |
| July 12, 2024 | Rainbow trout | 504 | 8.2 in. |
| June 13, 2024 | Rainbow trout | 3,752 | 9.5 in. |
| July 6, 2023 | Tiger trout | 1,002 | 3.0 in. |
| May 18, 2021 | Rainbow trout | 5,455 | 3.0 in. |
Fishing rules
- Trout limit: 2, each under 15 inches or over 22 inches.
- All trout from 15 to 22 inches must be released right away.
- Artificial flies and lures only from Jan. 1 until 6 a.m. on the third Saturday in May, and from the second Saturday in September through Dec. 31.
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
- Boating
- Boat ramp, Hand launch
- Other activities
- Hiking, Mountain biking, OHV or 4WD trails, Wildlife watching
- Camping
- Primitive tent camping
- Facilities
- Restrooms
- Accessible
- Restrooms, Trails/shoreline paths
Facility list from DWR Fish Utah. Check with the land manager before you go; facilities close seasonally.
Email me when Kolob Reservoir is stocked
Email me when Kolob Reservoir shows up in the DWR stocking report. Alerts start once we switch on email; your choices are saved now.
"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.
Kolob Reservoir questions
When was Kolob Reservoir last stocked?
The most recent stocking in the DWR report is dated Sept. 17, 2026: 1,777 rainbow trout and 513 tiger trout.
What fish are in Kolob Reservoir?
DWR lists cutthroat trout and rainbow trout as likely catches and brook trout and tiger trout as possible. Since 2021 DWR has stocked rainbow trout, tiger trout, cutbow and brook trout.
Are there special fishing rules at Kolob Reservoir?
Yes. The 2026 Utah Fishing Guidebook lists rules for this water, summarized on this page. Check the guidebook and DWR updates before fishing.
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.