Boulder Creek Fishing Regulations
Boulder County, Colorado · 2026 size limits, bag limits, and seasons
Boulder Creek is a creek in Boulder County, Colorado. It has its own fishing regulations for 7 species, including Brook Trout, Brown Trout, Cutthroat Trout, and Golden Trout. These rules replace Colorado's statewide limits on this water.
Fish with special rules on Boulder Creek
Tap a fish for identification tips, size records, and the best bait.
Boulder Creek limits by species (2026)
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
| All Fish SpeciesArtificial Only | – | – | Always open |
 Brook Trout | – | Catch & release only | Year-round |
 Brown Trout | – | Catch & release only | Year-round |
 Cutthroat Trout | – | Catch & release only | Year-round |
 Golden Trout | – | Catch & release only | Year-round |
 Lake Trout | – | Catch & release only | Year-round |
 Rainbow Trout | – | Catch & release only | Year-round |
 Steelhead | – | Catch & release only | Year-round |
– means no limit is listed for this water. Rules not shown here follow Colorado's statewide regulations.
Plan your Boulder Creek trip
Boulder Creek fishing: common questions
What fish have special regulations on Boulder Creek?
7 species have rules specific to Boulder Creek: Brook Trout, Brown Trout, Cutthroat Trout, Golden Trout, Lake Trout, Rainbow Trout, and Steelhead.
What is the brook trout limit on Boulder Creek?
Brook Trout are catch and release only on Boulder Creek.
What is the brown trout limit on Boulder Creek?
Brown Trout are catch and release only on Boulder Creek.
What is the cutthroat trout limit on Boulder Creek?
Cutthroat Trout are catch and release only on Boulder Creek.
Is Boulder Creek catch and release?
Some rules on Boulder Creek 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 Colorado statewide fishing rules apply on Boulder Creek?
Where Boulder Creek has its own rule for a species, that rule replaces the statewide limit. For species not listed on this page, Colorado's statewide regulations apply. Regulations are set by the Colorado Parks and Wildlife; confirm with the official 2026 regulations before keeping a fish.
Other Colorado waters with special regulations
- South Platte River
- Yampa River
- Colorado River
- White River
- Poudre River · Larimer
- Gunnison River
- Blue River · Grand, Summit
- Roaring Fork River
- Arkansas River · Chaffee , Lake , Fremont , Pueblo
- Animas River · La Plata
- Eagle River · Eagle
- Taylor River
Take Boulder Creek rules on the water
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