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    Rocky Mountain

    National Park Colorado

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Endangered and Threatened Animal Species

Endangered Species Act (ESA) Endangered, Threatened, and Candidate Species List for Rocky Mountain National Park

The following table contains a list of species that are specific to Rocky Mountain National Park and are federally listed as endangered, threatened or candidates for listing, by the U.S. Fish and Wildlife Service under the provisions of the Endangered Species Act. The U.S. Fish and Wildlife Service has reviewed the list and provided a letter of concurrence dated January 15, 2004.

The species that are included in the table must meet one of the following criteria:

  • The species is known to occur within the park.
  • The species does not occur within the park, but suitable habitat is available, the habitat is within the known elevation range for the species, and the species is known to exist in counties that the park occupies.
  • The species does not occur within the park, but actions within the park have the potential to affect the species.

In compliance with the Endangered Species Act, all management actions within the park are evaluated to determine if they will have any effect on endangered, threatened or candidate species on this list.

Federally Listed and Candidate Species & Their Status in Colorado



Known to Occur in RMNP

Known to Occur in Boulder County

Known to Occur in Larimer County

Known to Occur in Grand County

Amphibians

Boreal toad, Bufo boreas boreas, Candidate for Listing

Yes



Yes

Yes

Yes

Birds

Least tern, Sterna antillarum, Endangered

No



No

Mexican spotted owl, Strix occidentalis lucida, Listed Threatened

No

Yes Historically

Yes Historically

No

Piping plover, Charadrius melodus, Threatened

No



No

Whooping crane, Grus americana, Endangered

No



No

Yellow-billed cuckoo, Coccyzus americanus, Candidate for Listing

Yes Historically



No

Yes

Yes

Fish

Bonytail, Gila elegans, (presumed-historical) Endangered

No



No

No

*

Colorado pikeminnow, Ptychocheilus lucius, Endangered

No



No

No

*

Greenback cutthroat trout, Oncorhynchus clarki stomias, Threatened

Yes



Yes

Yes

No

Humpback chub, Gila cypha, Endangered

No



No

No

*

Pallid sturgeon, Scaphirhunchus albus, Threatened

No



No

Razorback sucker, Xyrauchen texanus, Endangered

No



No

No

*

Mammals

Canada lynx, Lynx canadensis, Threatened

Yes

Yes

Yes

Yes

Preble's meadow jumping mouse, Zapus hudsonius preblei, Threatened

No

Yes

Yes

No

Table Terminology

* Water depletions in the Upper Colorado River basin may affect these species
▲ Water depletions in the South Platte River basin may affect these species
Candidate means there is sufficient information indicating that formal listing under the ESA may be appropriate
Endangered means the species could become extinct
Threatened means the species could become endangered

Last modified 12/2004

Did You Know?

photo of wheelchair accessible trail

There are accessible trails which are good choices for visitors interested in adjusting to the park's higher elevations, groups that include young children, visitors with visual impairment and anyone who finds walking on level, relatively smooth paths attractive.