We, the U.S. Fish and Wildlife Service (Service), announce a 90-day finding on a petition to list the Columbian sharp-tailed grouse (Tympanuchus phasianellus columbianus) as threatened or endangered under the Endangered Species Act of 1973, as amended. We find that the petition does not provide substantial information indicating that listing the Columbian sharp-tailed grouse may be warranted. Therefore, we are not initiating a further status review in response to this petition. We ask the public to submit to us any new information that becomes available concerning the status of the Columbian sharp-tailed grouse or threats to it.