Bonnie Lake (Z-6) fishing

Bonnie Lake (Z-6) was last stocked on July 24, 2026 with 600 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 3,598 fish here, the 68th most of 263 stocked waters in Duchesne County.

Duchesne County

Stocking data fetched Nov. 10, 2026.

Last stockedJuly 24, 2026109 days ago, brook trout

Fish stocked in 20266001 record

Records since 20216History back to 2002

Stocked species1brook trout

Recent stockings at Bonnie Lake (Z-6)

July 24, 2026600 brook trout, 3.0 in. average
June 26, 2025600 brook trout, 3.0 in. average
July 2, 2024602 brook trout, 2.9 in. average
July 13, 2023598 brook trout, 2.7 in. average
June 27, 2022600 brook trout, 2.8 in. average
June 29, 2021598 brook trout, 2.8 in. average

Newest first, from the Utah DWR stocking report. Full stocking history.

Bonnie Lake (Z-6) facts

Last stocked: July 24, 2026 (109 days ago): 600 brook trout
Stockings in 2026: 1 (600 fish): 600 brook trout
County: Duchesne County
Stocked since 2021: brook trout
Average size stocked: 2.9 in. (2021 to 2026)
County rank: 68th most fish of 263 stocked waters in Duchesne County since 2021
Name in DWR report: BONNIE L Z-6
Nearest water: Lake D-19, 0.1 mi
Rules: Statewide rules (no water-specific entry in the 2026 guidebook)

Bonnie Lake (Z-6) stocking report, last 12 months

Bonnie Lake (Z-6): DWR stocking records since Nov. 10, 2025, newest first.

July 24, 2026	Brook trout	600	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.

Bonnie Lake (Z-6) stocking profile

First record in the DWR report: June 24, 2002. Since then DWR has logged 24 stockings here in 24 different years, 14,314 fish in all.
Species stocked 2021 to 2026, by share of fish: brook trout 100% (3,598 fish).
Busiest months in the record: July (62% of records) and June (38% 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: 3,598, the 68th most of 263 stocked waters in Duchesne County and 519th of 1,076 statewide.
Nearest other water with a page: Lake D-19, 0.1 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 Bonnie Lake (Z-6) stocked?

Based on DWR stocking records, 2021 to 2025. Stocked in 5 of those 5 years.

late Junestocked in 3 of the last 5 years, mostly brook trout.

2025 stocking: 1 record, first on June 26.

Years with a stocking in each third of the month, 2021 to 2025:012345

DWR does not publish stocking schedules. This is past stocking, not a promise. How we read patterns.

Bonnie Lake (Z-6) stocking history by year

Bonnie Lake (Z-6): DWR stocking records per year. Fish counts are totals of all records that year; average length is weighted by the number of fish.
Year	Records	Fish	Avg. length	Species
2026	1	600	3.0 in.	Brook trout
2025	1	600	3.0 in.	Brook trout
2024	1	602	2.9 in.	Brook trout
2023	1	598	2.7 in.	Brook trout
2022	1	600	2.8 in.	Brook trout
2021	1	598	2.8 in.	Brook trout
2020	1	611	2.5 in.	Brook trout
2019	1	455	2.7 in.	Brook trout
2018	1	600	2.9 in.	Brook trout
2017	1	608	2.3 in.	Brook trout
2016	1	601	2.2 in.	Brook trout
2015	1	608	2.5 in.	Brook trout
2014	1	632	2.4 in.	Brook trout
2013	1	613	2.6 in.	Brook trout
2012	1	564	2.3 in.	Brook trout
2010	1	605	2.8 in.	Brook trout
2009	1	603	3.0 in.	Brook trout
2008	1	600	2.9 in.	Brook trout
2007	1	600	3.5 in.	Brook trout
2006	1	600	2.8 in.	Brook trout
2005	1	603	2.6 in.	Brook trout
2004	1	603	2.5 in.	Brook trout
2003	1	598	2.6 in.	Brook trout
2002	1	612	2.5 in.	Brook trout

All stocking records 2021 to Nov. 10, 2025 (5)

Bonnie Lake (Z-6): DWR stocking records 2021 to Nov. 10, 2025.

June 26, 2025	Brook trout	600	3.0 in.
July 2, 2024	Brook trout	602	2.9 in.
July 13, 2023	Brook trout	598	2.7 in.
June 27, 2022	Brook trout	600	2.8 in.
June 29, 2021	Brook trout	598	2.8 in.

Fishing rules

No water-specific entry for Bonnie Lake (Z-6) 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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Bonnie Lake (Z-6) questions

When is Bonnie Lake (Z-6) stocked?

DWR does not publish stocking schedules. Past records show Bonnie Lake (Z-6) 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 Bonnie Lake (Z-6)?

Since 2021 DWR has stocked brook trout.

Sources

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.