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News & Releases
Mountain-Prairie Region

News Release

U.S. Fish and Wildlife Service Determines ESA Protection for the Rio Grande Cutthroat Trout is Not Warranted

For Immediate Release

October 01, 2014

Rio Grande cutthroat trout.
Rio Grande cutthroat trout. Credit: USFWS.

After review of the best available scientific and commercial information, the U.S. Fish and Wildlife Service (Service) found that listing the Rio Grande cutthroat trout (Oncorhynchus clarkii virginalis) under the Endangered Species Act is not warranted at this time. Therefore, the Service will remove this subspecies from the candidate list. 

The Service found that the Rio Grande cutthroat trout is not in danger of extinction throughout its range or in a significant portion of its range now, nor is it likely to become so in the foreseeable future.  However, the Service is asking the public to submit any new information that becomes available concerning the status of the Rio Grande cutthroat trout at any time.
The Service is requesting that any new information concerning the status of, or threats to, the Rio Grande cutthroat trout be submitted to the New Mexico Ecological Services Field Office at 2105 Osuna Rd NE, Albuquerque, NM 87113.  New information will help the Service monitor the Rio Grande cutthroat trout and encourage its conservation.  If an emergency situation develops for Rio Grande cutthroat trout the Service will consider an appropriate response under the Act. This finding is available on the Internet at http://www.regulations.gov at Docket Number FWS-R2-ES-2014-0042

Rio Grande cutthroat trout (a subspecies of cutthroat trout) inhabit high elevation streams in New Mexico and southern Colorado where they need clear, cold, highly oxygenated water, clean gravel substrates, a network of pools and runs, and an abundance of food (typically aquatic and terrestrial invertebrates).


– FWS –

U.S. Fish and Wildlife Service

Office of External Affairs

Mountain-Prairie Region

134 Union Blvd

Lakewood, CO 80228


303-236-3815 FAX



Lesli Gray
(972) 569-8588

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The mission of the U.S. Fish and Wildlife Service is working with Others to conserve, protect, and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American People.
Last modified: October 01, 2014
All Images Credit to and Courtesy of the U.S. Fish and Wildlife Service Unless Specified Otherwise.
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