Island Reservoir Fish Stocking
Utah · 1983–2022 on record
According to Utah DWR — Fish Stocking Events (1979–2024 archive), Island Reservoir was last stocked September 23, 2022 with Cutthroat Trout. Island Reservoir has 13 stocking records on file, spanning 1983–2022, with about 19,474 fish stocked over that period.
When Island Reservoir is stocked
Island Reservoir is typically stocked in fall, most often in September — 6 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Island Reservoir, freshest activity first.
Colorow
1 miDUCHESNE County · 1 species · 14 records
Last stocked July 2026
Brown Duck Lake
1 miDUCHESNE County · 2 species · 18 records
Last stocked September 2025
Lf 8
1 miDUCHESNE County · 1 species · 14 records
Last stocked September 2025
Clements Reservoir
2 miDUCHESNE County · 1 species · 18 records
Last stocked September 2025
Stewart Lake
2 miDUCHESNE County · 2 species · 11 records
Last stocked September 2025
Twin Lake
2 mi2 species · 15 records
Last stocked September 2024
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| September 23, 2022 | Cutthroat Trout | 1,648 | 1.91" | Utah DWR |
| October 12, 2018 | Cutthroat Trout | 1,180 | 1.74" | Utah DWR |
| September 15, 2014 | Cutthroat Trout | 1,615 | 1.52" | Utah DWR |
| September 30, 2010 | Cutthroat Trout | 1,018 | 1.71" | Utah DWR |
| October 12, 2006 | Cutthroat Trout | 1,564 | 2.13" | Utah DWR |
| March 13, 2006 | Cutthroat Trout | 1,650 | 2" | Utah DWR |
| September 27, 2004 | Cutthroat Trout | 1,623 | 1.7" | Utah DWR |
| October 7, 2002 | Cutthroat Trout | 1,628 | 2.09" | Utah DWR |
Show 5 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| September 30, 2001 | Cutthroat Trout | 1,432 | 1.66" | Utah DWR |
| October 5, 1999 | Cutthroat Trout | 1,074 | 1.9" | Utah DWR |
| July 13, 1992 | Cutthroat Trout | 1,654 | 0" | Utah DWR |
| August 13, 1987 | Cutthroat Trout | 1,664 | 1.9" | Utah DWR |
| September 10, 1983 | Cutthroat Trout | 1,724 | — | Utah DWR |
Frequently asked
When was Island Reservoir last stocked?
According to Utah DWR — Fish Stocking Events (1979–2024 archive), Island Reservoir was last stocked September 23, 2022 with Cutthroat Trout.
What fish species are stocked in Island Reservoir?
Island Reservoir is stocked with Cutthroat Trout.
What time of year is Island Reservoir stocked?
Island Reservoir is typically stocked in fall, most often in September.
How often is Island Reservoir stocked?
Island Reservoir is stocked intermittently — 13 recorded stockings between 1983 and 2022.
How many fish have been stocked in Island Reservoir?
About 19,474 fish have been stocked in Island Reservoir across 13 recorded events since 1983, per Utah fish & wildlife agency.
What size are the fish stocked in Island Reservoir?
Fish stocked in Island Reservoir average about 1.7 inches, based on the sizes the agency reported.