Rob Reservoir fishing

Rob Reservoir was last stocked on Sept. 10, 2026 with 268 cutthroat trout (2.2 in. average), according to the Utah DWR fish stocking report. It is a reservoir in Garfield County, Utah. From 2021 to 2026, DWR stocked 1,624 fish here, the 40th most of 65 stocked waters in Garfield County.

Garfield County

Stocking data fetched Nov. 10, 2026.

Last stockedSept. 10, 202661 days ago, cutthroat trout

Fish stocked in 20262681 record

Records since 20216History back to 2003

Stocked species1cutthroat trout

Recent stockings at Rob Reservoir

Sept. 10, 2026268 cutthroat trout, 2.2 in. average
Sept. 9, 2025265 cutthroat trout, 2.0 in. average
Sept. 26, 2024291 cutthroat trout, 1.9 in. average
Sept. 18, 2023251 cutthroat trout, 2.1 in. average
Sept. 26, 2022286 cutthroat trout, 2.4 in. average
Sept. 23, 2021263 cutthroat trout, 2.5 in. average

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

Rob Reservoir facts

Last stocked: Sept. 10, 2026 (61 days ago): 268 cutthroat trout
Stockings in 2026: 1 (268 fish): 268 cutthroat trout
County: Garfield County
Stocked since 2021: cutthroat trout
Average size stocked: 2.2 in. (2021 to 2026)
County rank: 40th most fish of 65 stocked waters in Garfield County since 2021
Name in DWR report: ROB RES EMW
Nearest water: Otter Lake, 1 mi
Rules: Statewide rules (no water-specific entry in the 2026 guidebook)

Rob Reservoir stocking report, last 12 months

Rob Reservoir: DWR stocking records since Nov. 10, 2025, newest first.

Sept. 10, 2026	Cutthroat trout	268	2.2 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.

Rob Reservoir stocking profile

First record in the DWR report: Oct. 16, 2003. Since then DWR has logged 19 stockings here in 19 different years, 6,041 fish in all.
Species stocked 2021 to 2026, by share of fish: cutthroat trout 100% (1,624 fish).
Busiest months in the record: September (79% of records) and October (21% of records).
Stocked fish averaged 2.2 in. from 2021 to 2026 (per-record averages ranged from 1.9 to 2.5 in.). The yearly average was 2.5 in. in 2021 and 2.0 in. in 2025.
Fish stocked 2021 to 2026: 1,624, the 40th most of 65 stocked waters in Garfield County and 678th of 1,076 statewide.
Nearest other water with a page: Otter Lake, 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 Rob Reservoir stocked?

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

late Septemberstocked in 3 of the last 5 years, mostly cutthroat trout.

2025 stocking: 1 record, first on Sept. 9.

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.

Rob Reservoir stocking history by year

Rob Reservoir: 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	268	2.2 in.	Cutthroat trout
2025	1	265	2.0 in.	Cutthroat trout
2024	1	291	1.9 in.	Cutthroat trout
2023	1	251	2.1 in.	Cutthroat trout
2022	1	286	2.4 in.	Cutthroat trout
2021	1	263	2.5 in.	Cutthroat trout
2020	1	153	2.4 in.	Cutthroat trout
2018	1	159	2.3 in.	Cutthroat trout
2017	1	275	2.1 in.	Cutthroat trout
2016	1	291	1.9 in.	Cutthroat trout
2015	1	297	2.0 in.	Cutthroat trout
2014	1	305	1.9 in.	Cutthroat trout
2013	1	222	2.3 in.	Cutthroat trout
2012	1	206	2.4 in.	Cutthroat trout
2010	1	526	2.1 in.	Cutthroat trout
2008	1	237	2.2 in.	Cutthroat trout
2006	1	506	1.9 in.	Cutthroat trout
2004	1	230	2.2 in.	Cutthroat trout
2003	1	1,010	1.8 in.	Cutthroat trout

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

Rob Reservoir: DWR stocking records 2021 to Nov. 10, 2025.

Sept. 9, 2025	Cutthroat trout	265	2.0 in.
Sept. 26, 2024	Cutthroat trout	291	1.9 in.
Sept. 18, 2023	Cutthroat trout	251	2.1 in.
Sept. 26, 2022	Cutthroat trout	286	2.4 in.
Sept. 23, 2021	Cutthroat trout	263	2.5 in.

Fishing rules

No water-specific entry for Rob Reservoir 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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Rob Reservoir questions

When is Rob Reservoir stocked?

DWR does not publish stocking schedules. Past records show Rob Reservoir was stocked in late September (3 of the last 5 years). The most recent stocking in the DWR report is dated Sept. 10, 2026.

What fish are in Rob Reservoir?

Since 2021 DWR has stocked cutthroat 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.