Rainbow Lake (U-33) fishing
Rainbow Lake (U-33) was last stocked on July 16, 2026 with 2,471 brook trout (3.5 in. average), according to the Utah DWR fish stocking report. It is a lake in Duchesne County, Utah. From 2021 to 2026, DWR stocked 8,106 fish here, the 28th most of 258 stocked waters in Duchesne County.
Rainbow Lake (U-33) stocking report, last 12 months
| July 16, 2026 | Brook trout | 2,471 | 3.5 in. |
| July 15, 2026 | Brook trout | 524 | 3.5 in. |
| July 15, 2026 | Tiger trout | 501 | 4.0 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 Rainbow Lake (U-33) stocked?
Based on DWR stocking records, 2021 to 2025. Stocked in 3 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.
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.
Rainbow Lake (U-33) stocking profile
- First record in the DWR report: July 2, 2003. Since then DWR has logged 12 stockings here in 10 different years, 29,136 fish in all.
- Species stocked 2021 to 2026, by share of fish: brook trout 80% (6,509 fish) and tiger trout 20% (1,597 fish).
- Busiest months in the record: July (83% of records) and June (8% of records).
- Stocked fish averaged 3.3 in. from 2021 to 2026 (per-record averages ranged from 3.0 to 4.0 in.).
- Fish stocked 2021 to 2026: 8,106, the 28th most of 258 stocked waters in Duchesne County and 352nd of 1,068 statewide.
- Nearest other water with a page: Uinta River, 3.6 mi away.
Computed from Utah DWR stocking records (fish counts and average lengths as DWR reports them). Past stocking is history, not a schedule.
Rainbow Lake (U-33) stocking history by year
| Year | Records | Fish | Avg. length | Species |
|---|---|---|---|---|
| 2026 | 3 | 3,496 | 3.5 in. | Brook trout, Tiger trout |
| 2024 | 1 | 698 | 3.6 in. | Tiger trout |
| 2023 | 1 | 3,514 | 3.0 in. | Brook trout |
| 2022 | 1 | 398 | 3.7 in. | Tiger trout |
| 2020 | 1 | 3,496 | 3.0 in. | Brook trout |
| 2017 | 1 | 3,519 | 2.5 in. | Brook trout |
| 2013 | 1 | 3,531 | 2.6 in. | Brook trout |
| 2010 | 1 | 3,496 | 2.9 in. | Brook trout |
| 2007 | 1 | 3,489 | 2.6 in. | Brook trout |
| 2003 | 1 | 3,499 | 2.5 in. | Brook trout |
All stocking records 2021 to Sept. 24, 2025 (3)
| June 26, 2024 | Tiger trout | 698 | 3.6 in. |
| July 21, 2023 | Brook trout | 3,514 | 3.0 in. |
| July 6, 2022 | Tiger trout | 398 | 3.7 in. |
Fishing rules
The 2026 Utah Fishing Guidebook lists no water-specific rules for Rainbow Lake (U-33) 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.
Email me when Rainbow Lake (U-33) is stocked
Email me when Rainbow Lake (U-33) 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.
Rainbow Lake (U-33) questions
When was Rainbow Lake (U-33) last stocked?
The most recent stocking in the DWR report is dated July 16, 2026: 2,471 brook trout.
What fish are in Rainbow Lake (U-33)?
Since 2021 DWR has stocked brook trout and tiger trout.
What are the fishing limits at Rainbow Lake (U-33)?
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. 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.