Rock Lake (A-10) fishing
Rock Lake (A-10) was last stocked on July 2, 2025 with 399 tiger trout (3.8 in. average), according to the Utah DWR fish stocking report. It is a lake in Summit County, Utah. From 2021 to 2026, DWR stocked 1,192 fish here, the 102nd most of 183 stocked waters in Summit County.
Recent stockings at Rock Lake (A-10)
- July 2, 2025399 tiger trout, 3.8 in. average
- July 14, 2023396 tiger trout, 2.8 in. average
- June 30, 2021397 tiger trout, 2.7 in. average
- July 9, 2019405 tiger trout, 2.6 in. average
- June 29, 2017400 tiger trout, 2.7 in. average
- Aug. 6, 2012795 brook trout, 2.7 in. average
Newest first, from the Utah DWR stocking report. Full stocking history.
Rock Lake (A-10) facts
- Last stocked
- July 2, 2025 (496 days ago): 399 tiger trout
- Stockings in 2026
- None recorded yet in 2026
- County
- Summit County
- Stocked since 2021
- tiger trout
- Average size stocked
- 3.1 in. (2021 to 2026)
- County rank
- 102nd most fish of 183 stocked waters in Summit County since 2021
- Name in DWR report
- ROCK L A-10
- Nearest water
- Shadow Lake (A-52), 0.2 mi
- Rules
- Statewide rules (no water-specific entry in the 2026 guidebook)
Rock Lake (A-10) stocking report, last 12 months
No stocking recorded in the last 12 months. The most recent record is dated July 2, 2025.
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.
Rock Lake (A-10) stocking profile
- First record in the DWR report: June 30, 2003. Since then DWR has logged 10 stockings here in 10 different years, 6,005 fish in all.
- Species stocked 2021 to 2026, by share of fish: tiger trout 100% (1,192 fish).
- Busiest months in the record: July (60% of records) and June (30% of records).
- Stocked fish averaged 3.1 in. from 2021 to 2026 (per-record averages ranged from 2.7 to 3.8 in.). The yearly average was 2.7 in. in 2021 and 3.8 in. in 2025.
- Fish stocked 2021 to 2026: 1,192, the 102nd most of 183 stocked waters in Summit County and 764th of 1,076 statewide.
- Nearest other water with a page: Shadow Lake (A-52), 0.2 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 Rock Lake (A-10) 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.
2025 stocking: 1 record, first on July 2.
In past years, stocking here had usually started by this time of year (3 of the last 5 years). No stocking has been recorded here yet in 2026.
DWR does not publish stocking schedules. This is past stocking, not a promise. How we read patterns.
Rock Lake (A-10) stocking history by year
| Year | Records | Fish | Avg. length | Species |
|---|---|---|---|---|
| 2025 | 1 | 399 | 3.8 in. | Tiger trout |
| 2023 | 1 | 396 | 2.8 in. | Tiger trout |
| 2021 | 1 | 397 | 2.7 in. | Tiger trout |
| 2019 | 1 | 405 | 2.6 in. | Tiger trout |
| 2017 | 1 | 400 | 2.7 in. | Tiger trout |
| 2012 | 1 | 795 | 2.7 in. | Brook trout |
| 2009 | 1 | 800 | 2.7 in. | Brook trout |
| 2007 | 1 | 803 | 3.2 in. | Brook trout |
| 2005 | 1 | 804 | 2.6 in. | Brook trout |
| 2003 | 1 | 806 | 2.6 in. | Brook trout |
All stocking records 2021 to Nov. 10, 2025 (3)
| July 2, 2025 | Tiger trout | 399 | 3.8 in. |
| July 14, 2023 | Tiger trout | 396 | 2.8 in. |
| June 30, 2021 | Tiger trout | 397 | 2.7 in. |
Fishing rules
No water-specific entry for Rock Lake (A-10) 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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Rock Lake (A-10) questions
When was Rock Lake (A-10) last stocked?
The most recent stocking in the DWR report is dated July 2, 2025: 399 tiger trout.
What fish are in Rock Lake (A-10)?
Since 2021 DWR has stocked tiger 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.