What special fishing regulations apply at Rocky Mountain National Park?

Rocky Mountain National Park carries 3 special-regulation overlays that override Colorado's statewide 2026 rules, covering Cutthroat trout and Brook trout. One of them reads: "Federal NPS overlay — CPW Fishing License valid throughout (NPS does NOT supersede CPW unlike Yellowstone NP); native Greenback cutthroat trout (federally Threatened ESA) 0 / day CATCH-AND-RELEASE-ONLY on Bear Lake + Sky Pond + listed Greenback reintroduction lakes (CPW + USFWS + NPS joint reintroduction program); other waters 4 / day combined trout." Every overlay on this water body is listed in full above.

Do I need a fishing license to fish Rocky Mountain National Park?

Yes. Rocky Mountain National Park 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 Rocky Mountain National Park; they do not waive the license requirement. Free-fishing days and youth exemptions follow the statewide Colorado rules.

Do Rocky Mountain National Park's special rules replace Colorado's statewide limits?

Only where they conflict. Colorado's statewide 2026 regulations apply on Rocky Mountain National Park by default; the overlays above replace the matching statewide rules 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.

Which species have special rules on Rocky Mountain National Park?

Cutthroat trout and Brook trout have a water-body-specific rule on Rocky Mountain National Park, each linking to its full Colorado regulations above. Species not listed here follow the statewide Colorado limits.

2026 regulation year

Rocky Mountain National Park 2026 — Colorado Fishing Regulations

Colorado statewide rules apply unless overridden below.

Last updated June 5, 2026

Rocky Mountain National Park carries 3 special-regulation overlays on top of Colorado's 2026 fishing rules — covering Cutthroat trout, Brook trout. Verify the agency booklet before launching: in-season changes are not yet wired to this page.

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State-level special regulation

Federal NPS overlay — CPW Fishing License valid throughout (NPS does NOT supersede CPW unlike Yellowstone NP); native Greenback cutthroat trout (federally Threatened ESA) 0 / day CATCH-AND-RELEASE-ONLY on Bear Lake + Sky Pond + listed Greenback reintroduction lakes (CPW + USFWS + NPS joint reintroduction program); other waters 4 / day combined trout
Source: Colorado special-water list

Per-species rules on Rocky Mountain National Park

Cutthroat trout regulations →
0 / day CATCH-AND-RELEASE-ONLY native Greenback cutthroat (federally Threatened ESA — CPW + USFWS + NPS joint reintroduction program); barbless single hook + artificial-only
Brook trout regulations →
4 / day combined trout on harvest waters; native Greenback cutthroat 0 / day catch-and-release-only; Federal NPS overlay — CPW Fishing License valid (NPS does NOT supersede CPW)

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

Browse all water bodies →

Frequently asked questions

What special fishing regulations apply at Rocky Mountain National Park?: Rocky Mountain National Park carries 3 special-regulation overlays that override Colorado's statewide 2026 rules, covering Cutthroat trout and Brook trout. One of them reads: "Federal NPS overlay — CPW Fishing License valid throughout (NPS does NOT supersede CPW unlike Yellowstone NP); native Greenback cutthroat trout (federally Threatened ESA) 0 / day CATCH-AND-RELEASE-ONLY on Bear Lake + Sky Pond + listed Greenback reintroduction lakes (CPW + USFWS + NPS joint reintroduction program); other waters 4 / day combined trout." Every overlay on this water body is listed in full above.
Do I need a fishing license to fish Rocky Mountain National Park?: Yes. Rocky Mountain National Park 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 Rocky Mountain National Park; they do not waive the license requirement. Free-fishing days and youth exemptions follow the statewide Colorado rules.
Do Rocky Mountain National Park's special rules replace Colorado's statewide limits?: Only where they conflict. Colorado's statewide 2026 regulations apply on Rocky Mountain National Park by default; the overlays above replace the matching statewide rules 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.
Which species have special rules on Rocky Mountain National Park?: Cutthroat trout and Brook trout have a water-body-specific rule on Rocky Mountain National Park, each linking to its full Colorado regulations above. Species not listed here follow the statewide Colorado limits.

← Back to Colorado regulations overview