Blythe Lake (Z-20) fishing
Blythe Lake (Z-20) was last stocked on July 24, 2026 with 400 brook trout (3.0 in. average), according to the Utah DWR fish stocking report. It is a lake in Duchesne County, Utah. From 2021 to 2026, DWR stocked 2,400 fish here, the 101st most of 263 stocked waters in Duchesne County.
Recent stockings at Blythe Lake (Z-20)
- July 24, 2026400 brook trout, 3.0 in. average
- June 26, 2025400 brook trout, 3.0 in. average
- July 2, 2024398 brook trout, 2.9 in. average
- July 13, 2023403 brook trout, 2.7 in. average
- June 27, 2022396 brook trout, 2.8 in. average
- June 29, 2021403 brook trout, 2.8 in. average
Newest first, from the Utah DWR stocking report. Full stocking history.
Blythe Lake (Z-20) facts
- Last stocked
- July 24, 2026 (109 days ago): 400 brook trout
- Stockings in 2026
- 1 (400 fish): 400 brook trout
- County
- Duchesne County
- Stocked since 2021
- brook trout
- Average size stocked
- 2.9 in. (2021 to 2026)
- County rank
- 101st most fish of 263 stocked waters in Duchesne County since 2021
- Name in DWR report
- BLYTHE L Z-20
- Nearest water
- Lake D-19, 0.4 mi
- Rules
- Statewide rules (no water-specific entry in the 2026 guidebook)
Blythe Lake (Z-20) stocking report, last 12 months
| July 24, 2026 | Brook trout | 400 | 3.0 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.
Blythe Lake (Z-20) stocking profile
- First record in the DWR report: June 30, 2003. Since then DWR has logged 14 stockings here in 14 different years, 7,815 fish in all.
- Species stocked 2021 to 2026, by share of fish: brook trout 100% (2,400 fish).
- Busiest months in the record: July (71% of records) and June (29% of records).
- Stocked fish averaged 2.9 in. from 2021 to 2026 (per-record averages ranged from 2.7 to 3.0 in.).
- Fish stocked 2021 to 2026: 2,400, the 101st most of 263 stocked waters in Duchesne County and 599th of 1,076 statewide.
- Nearest other water with a page: Lake D-19, 0.4 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 Blythe Lake (Z-20) stocked?
Based on DWR stocking records, 2021 to 2025. Stocked in 5 of those 5 years.
2025 stocking: 1 record, first on June 26.
DWR does not publish stocking schedules. This is past stocking, not a promise. How we read patterns.
Blythe Lake (Z-20) stocking history by year
| Year | Records | Fish | Avg. length | Species |
|---|---|---|---|---|
| 2026 | 1 | 400 | 3.0 in. | Brook trout |
| 2025 | 1 | 400 | 3.0 in. | Brook trout |
| 2024 | 1 | 398 | 2.9 in. | Brook trout |
| 2023 | 1 | 403 | 2.7 in. | Brook trout |
| 2022 | 1 | 396 | 2.8 in. | Brook trout |
| 2021 | 1 | 403 | 2.8 in. | Brook trout |
| 2019 | 1 | 520 | 2.7 in. | Brook trout |
| 2017 | 1 | 691 | 2.3 in. | Brook trout |
| 2015 | 1 | 704 | 2.5 in. | Brook trout |
| 2013 | 1 | 710 | 2.6 in. | Brook trout |
| 2009 | 1 | 700 | 2.7 in. | Brook trout |
| 2007 | 1 | 698 | 3.2 in. | Brook trout |
| 2005 | 1 | 697 | 2.6 in. | Brook trout |
| 2003 | 1 | 695 | 2.6 in. | Brook trout |
All stocking records 2021 to Nov. 10, 2025 (5)
| June 26, 2025 | Brook trout | 400 | 3.0 in. |
| July 2, 2024 | Brook trout | 398 | 2.9 in. |
| July 13, 2023 | Brook trout | 403 | 2.7 in. |
| June 27, 2022 | Brook trout | 396 | 2.8 in. |
| June 29, 2021 | Brook trout | 403 | 2.8 in. |
Fishing rules
No water-specific entry for Blythe Lake (Z-20) 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.
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Blythe Lake (Z-20) questions
When is Blythe Lake (Z-20) stocked?
DWR does not publish stocking schedules. Past records show Blythe Lake (Z-20) was stocked in late June (3 of the last 5 years). The most recent stocking in the DWR report is dated July 24, 2026.
What fish are in Blythe Lake (Z-20)?
Since 2021 DWR has stocked brook 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.