Kolob Reservoir Fishing Regulations
Washington County, Utah · 2026 size limits, bag limits, and seasons
Kolob Reservoir is a reservoir in Washington County, Utah. It has its own fishing regulations for 7 species, including Brook Trout, Brown Trout, Cutthroat Trout, and Golden Trout, set separately for 2 sections of the reservoir. These rules replace Utah's statewide limits on this water.
Map of Kolob Reservoir
Fish with special rules on Kolob Reservoir
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Kolob Reservoir limits by species (2026)
Entire reservoir
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
| All Fish SpeciesArtificial Only | – | – | Jan 1 – May 16, Sep 12 – Dec 31 |
 Brook Trout | – | 2 | Year-round |
| 15–22" slot | Catch & release only | Year-round | |
 Brown Trout | 15–22" slot | Catch & release only | Year-round |
| – | 2 | Year-round | |
 Cutthroat Trout | 15–22" slot | Catch & release only | Year-round |
| – | 2 | Year-round | |
 Golden Trout | – | 2 | Year-round |
| 15–22" slot | Catch & release only | Year-round | |
 Lake Trout | – | 2 | Year-round |
| 15–22" slot | Catch & release only | Year-round | |
 Rainbow Trout | 15–22" slot | Catch & release only | Year-round |
| – | 2 | Year-round | |
 Steelhead | – | 2 | Year-round |
| 15–22" slot | Catch & release only | Year-round |
Entire reservoir
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
| Brook TroutLimit 2 trout (must be under 15" or over 22") · All trout 15-22" must be immediately released · Artificial flies and lures only Jan 1 - 6 a.m. third Saturday of May, and September - Dec 31 | – | 2 | Year-round |
| Brown TroutLimit 2 trout (must be under 15" or over 22") · All trout 15-22" must be immediately released · Artificial flies and lures only Jan 1 - 6 a.m. third Saturday of May, and September - Dec 31 | – | 2 | Year-round |
| Cutthroat TroutLimit 2 trout (must be under 15" or over 22") · All trout 15-22" must be immediately released · Artificial flies and lures only Jan 1 - 6 a.m. third Saturday of May, and September - Dec 31 | – | 2 | Year-round |
| Golden TroutLimit 2 trout (must be under 15" or over 22") · All trout 15-22" must be immediately released · Artificial flies and lures only Jan 1 - 6 a.m. third Saturday of May, and September - Dec 31 | – | 2 | Year-round |
| Lake TroutLimit 2 trout (must be under 15" or over 22") · All trout 15-22" must be immediately released · Artificial flies and lures only Jan 1 - 6 a.m. third Saturday of May, and September - Dec 31 | – | 2 | Year-round |
| Rainbow TroutLimit 2 trout (must be under 15" or over 22") · All trout 15-22" must be immediately released · Artificial flies and lures only Jan 1 - 6 a.m. third Saturday of May, and September - Dec 31 | – | 2 | Year-round |
| SteelheadLimit 2 trout (must be under 15" or over 22") · All trout 15-22" must be immediately released · Artificial flies and lures only Jan 1 - 6 a.m. third Saturday of May, and September - Dec 31 | – | 2 | Year-round |
– means no limit is listed for this water. Rules not shown here follow Utah's statewide regulations.
Plan your Kolob Reservoir trip
Kolob Reservoir fishing: common questions
What fish have special regulations on Kolob Reservoir?
7 species have rules specific to Kolob Reservoir: Brook Trout, Brown Trout, Cutthroat Trout, Golden Trout, Lake Trout, Rainbow Trout, and Steelhead.
What is the brook trout limit on Kolob Reservoir?
No size limit is listed for Brook Trout on Kolob Reservoir (entire reservoir), and the daily bag limit is 2. Limits change during the year. Rules differ across 2 sections of the reservoir.
What is the brown trout limit on Kolob Reservoir?
Brown Trout are catch and release only on Kolob Reservoir (entire reservoir). Limits change during the year. Rules differ across 2 sections of the reservoir.
What is the cutthroat trout limit on Kolob Reservoir?
Cutthroat Trout are catch and release only on Kolob Reservoir (entire reservoir). Limits change during the year. Rules differ across 2 sections of the reservoir.
Is Kolob Reservoir catch and release?
Some rules on Kolob Reservoir are catch and release only, covering Brook Trout, Brown Trout, Cutthroat Trout, Golden Trout, and Lake Trout and others. Check the table for the section and dates that apply.
Do Utah statewide fishing rules apply on Kolob Reservoir?
Where Kolob Reservoir has its own rule for a species, that rule replaces the statewide limit. For species not listed on this page, Utah's statewide regulations apply. Regulations are set by the Utah Division of Wildlife Resources; confirm with the official 2026 regulations before keeping a fish.
Other Utah waters with special regulations
- Logan River · Cache
- Green River · Carbon, Daggett, Emery, Grand, San Juan, Uintah and Wayne
- Flaming Gorge Reservoir · Daggett
- Provo River · Summit, Utah and Wasatch
- Calder Reservoir · Uintah
- Lake Powell · Garfield, Kane and San Juan
- Weber River · Summit
- Fish Lake · Sevier
- Minersville Reservoir · Beaver
- Panguitch Lake · Garfield
- Hobbs Reservoir · Davis
- Joes Valley Reservoir · Emery
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