2026 regulation year
Big Thompson River + Eagle River + Blue River + Colorado River 2026 — Colorado Fishing Regulations
Colorado statewide rules apply unless overridden below.
Last updated
Big Thompson River + Eagle River + Blue River + Colorado River carries a special-regulation overlay on top of Colorado's 2026 fishing rules. Verify the agency booklet before launching: in-season changes are not yet wired to this page.
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Watch Big Thompson River + Eagle River + Blue River + Colorado River (CO) and we'll email you when a season, bag limit, slot, or closure changes. Free while in beta.
State-level special regulation
Gold Medal Waters — trout 2 / day combined with 16 in min TROPHY MANAGEMENT on listed Quality reaches; Big Thompson through Estes Park canyon Gold Medal designation; Colorado River through Hot Sulphur Springs reach Gold Medal designation
Source: Colorado special-water list
Official source
Colorado Parks and Wildlife (CPW) publishes the authoritative 2026 Colorado fishing regulations. Special-regulation lakes and rivers are listed in the agency booklet — always verify before fishing.
Visit official Colorado fishing regulations →
Emergency-order channel
In-season closures, slot-limit changes, and run-count-driven harvest pauses are posted to Colorado Parks and Wildlife's emergency-order feed — check it before any Colorado trip during the active season.
Other special-regulation waters in Colorado
- Animas River through Durango
- Antero Reservoir (Park County)
- Arkansas River Leadville to Cañon City
- Bear Creek headwaters
- Black Canyon of the Gunnison National Park
- Blue Mesa Reservoir
- Chatfield Reservoir
- Cherry Creek Reservoir
- Conejos River + Animas River + Yampa River + Big Thompson River + Eagle River + Blue River + Colorado River + Gunnison River Gold Medal reaches
- Crawford Reservoir (Delta County)
- Crosho Reservoir (Rio Blanco County)
- Curecanti National Recreation Area
Frequently asked questions
- What special fishing regulations apply at Big Thompson River + Eagle River + Blue River + Colorado River?
- Big Thompson River + Eagle River + Blue River + Colorado River carries one special-regulation overlay that overrides Colorado's statewide 2026 rules. It reads: "Gold Medal Waters — trout 2 / day combined with 16 in min TROPHY MANAGEMENT on listed Quality reaches; Big Thompson through Estes Park canyon Gold Medal designation; Colorado River through Hot Sulphur Springs reach Gold Medal designation." Every overlay on this water body is listed in full above.
- Do I need a fishing license to fish Big Thompson River + Eagle River + Blue River + Colorado River?
- Yes. Big Thompson River + Eagle River + Blue River + Colorado River is in Colorado, so a valid Colorado fishing license is required just as it is anywhere else in the state, issued by Colorado Parks and Wildlife (CPW). The special regulations on this page change the bag, size, slot, or gear rules for CO trophy trout rivers; they do not waive the license requirement. Free-fishing days and youth exemptions follow the statewide Colorado rules.
- Do Big Thompson River + Eagle River + Blue River + Colorado River's special rules replace Colorado's statewide limits?
- Only where they conflict. Colorado's statewide 2026 regulations apply on CO trophy trout rivers by default; the overlays above replace the matching statewide rule for the species or gear they name, while everything not specifically overridden still follows the statewide rule. When a water-body rule and the statewide rule disagree, the water-body rule wins.