Heart Lake (X-13) fishing
Heart Lake (X-13) was last stocked on Sept. 18, 2025 with 569 cutthroat trout (1.5 in. average), according to the Utah DWR fish stocking report. It is a lake in Duchesne County, Utah. From 2021 to 2026, DWR stocked 1,686 fish here, the 126th most of 263 stocked waters in Duchesne County.
Recent stockings at Heart Lake (X-13)
- Sept. 18, 2025569 cutthroat trout, 1.5 in. average
- Sept. 19, 2023561 cutthroat trout, 1.4 in. average
- Sept. 22, 2021556 cutthroat trout, 1.9 in. average
- Sept. 23, 2019569 cutthroat trout, 1.7 in. average
- Sept. 25, 2017569 cutthroat trout, 1.6 in. average
- Sept. 19, 2015549 cutthroat trout, 3.3 in. average
Newest first, from the Utah DWR stocking report. Full stocking history.
Heart Lake (X-13) facts
- Last stocked
- Sept. 18, 2025 (418 days ago): 569 cutthroat trout
- Stockings in 2026
- None recorded yet in 2026
- County
- Duchesne County
- Stocked since 2021
- cutthroat trout
- Average size stocked
- 1.6 in. (2021 to 2026)
- County rank
- 126th most fish of 263 stocked waters in Duchesne County since 2021
- Name in DWR report
- HEART L X-13
- Nearest water
- Survey Lake (RC-20), 1 mi
- Rules
- Statewide rules (no water-specific entry in the 2026 guidebook)
Heart Lake (X-13) stocking report, last 12 months
No stocking recorded in the last 12 months. The most recent record is dated Sept. 18, 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.
Heart Lake (X-13) stocking profile
- First record in the DWR report: Oct. 3, 2003. Since then DWR has logged 10 stockings here in 10 different years, 5,669 fish in all.
- Species stocked 2021 to 2026, by share of fish: cutthroat trout 100% (1,686 fish).
- Busiest months in the record: September (80% of records) and July (10% of records).
- Stocked fish averaged 1.6 in. from 2021 to 2026 (per-record averages ranged from 1.4 to 1.9 in.).
- Fish stocked 2021 to 2026: 1,686, the 126th most of 263 stocked waters in Duchesne County and 672nd of 1,076 statewide.
- Nearest other water with a page: Survey Lake (RC-20), 1 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 Heart Lake (X-13) stocked?
Based on DWR stocking records, 2021 to 2025. Stocked in 3 of those 5 years.
2025 stocking: 1 record, first on Sept. 18.
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.
Heart Lake (X-13) stocking history by year
| Year | Records | Fish | Avg. length | Species |
|---|---|---|---|---|
| 2025 | 1 | 569 | 1.5 in. | Cutthroat trout |
| 2023 | 1 | 561 | 1.4 in. | Cutthroat trout |
| 2021 | 1 | 556 | 1.9 in. | Cutthroat trout |
| 2019 | 1 | 569 | 1.7 in. | Cutthroat trout |
| 2017 | 1 | 569 | 1.6 in. | Cutthroat trout |
| 2015 | 1 | 549 | 3.3 in. | Cutthroat trout |
| 2013 | 1 | 569 | 2.8 in. | Cutthroat trout |
| 2010 | 1 | 590 | 1.7 in. | Cutthroat trout |
| 2008 | 1 | 565 | 1.4 in. | Cutthroat trout |
| 2003 | 1 | 572 | 1.8 in. | Cutthroat trout |
All stocking records 2021 to Nov. 10, 2025 (3)
| Sept. 18, 2025 | Cutthroat trout | 569 | 1.5 in. |
| Sept. 19, 2023 | Cutthroat trout | 561 | 1.4 in. |
| Sept. 22, 2021 | Cutthroat trout | 556 | 1.9 in. |
Fishing rules
No water-specific entry for Heart Lake (X-13) 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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Heart Lake (X-13) questions
When is Heart Lake (X-13) stocked?
DWR does not publish stocking schedules. Past records show Heart Lake (X-13) was stocked in mid to late September (3 of the last 5 years). The most recent stocking in the DWR report is dated Sept. 18, 2025.
What fish are in Heart Lake (X-13)?
Since 2021 DWR has stocked cutthroat 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.