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.
Recent stockings at Kolob Reservoir
- Sept. 17, 20261,777 rainbow trout and 513 tiger trout, 9.7 in. average
- May 28, 202611,600 cutbow and 10,020 rainbow trout, 3.4 in. average
- June 9, 20255,516 rainbow trout and 1,007 tiger trout, 3.4 in. average
- Aug. 15, 2024502 brook trout, 3.4 in. average
- July 12, 20245,507 rainbow trout and 1,015 tiger trout, 3.4 in. average
- June 13, 20243,752 rainbow trout, 9.5 in. average
Newest first, from the Utah DWR stocking report. Full stocking history.
Kolob Reservoir facts
- Last stocked
- Sept. 17, 2026 (54 days ago): 1,777 rainbow trout and 513 tiger trout
- Stockings in 2026
- 5 (23,910 fish): 11,797 rainbow trout, 11,600 cutbow and 513 tiger trout
- County
- Washington County
- Size
- 250 acres
- DWR program
- Blue Ribbon Fishery
- Stocked since 2021
- rainbow trout, tiger trout, cutbow and brook trout
- Likely catch (DWR)
- cutthroat trout and rainbow trout
- Average size stocked
- 4.1 in. (2021 to 2026)
- County rank
- 4th most fish of 17 stocked waters in Washington County since 2021
- Name in DWR report
- KOLOB RES
- Nearest water
- Woods Ranch Pond (Kids Pond), 12.8 mi
- Rules
- Water-specific rules in the 2026 guidebook
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 | Rainbow trout | 4,995 | 6.1 in. |
| May 28, 2026 | Cutbow | 11,600 | 2.1 in. |
| May 28, 2026 | Rainbow trout | 5,025 | 3.9 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.
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 116th of 1,076 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.
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. This is past stocking, not a promise. How we read patterns.
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 Nov. 10, 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.
From the 2026 Utah Fishing Guidebook, in our own words. Rules can change mid-year: check 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.
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"Often stocked around now" heads-ups come from past records only, never a promise. We use your email only for these alerts. 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 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.