The Columbia River redband trout, the inland redband trout or the interior redband troutColumbia River Redband Trout - ''Oncorhynchus mykiss gairdneri''
fieldguide.mt.gov (''Oncorhynchus mykiss gairdneri'') is one of three

redband trout Redband trout are a group of three recognized subspecies of rainbow trout (''Oncorhynchus mykiss''). They occur in three distinct regions in Pacific basin tributaries and endorheic basins in the western United States. The three subspecies are th ...

subspecies of the rainbow trout in the family

Salmonidae Salmonidae is a family of ray-finned fish that constitutes the only currently extant family in the order Salmoniformes . It includes salmon (both Atlantic and Pacific species), trout (both ocean-going and landlocked), chars, freshwater whitefis ...

. It is native in the Columbia River and its tributaries in

Idaho Idaho ( ) is a state in the Pacific Northwest region of the Western United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyomi ...

Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. T ...

Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...

and

Montana Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columb ...

. It includes sea-run anadromous forms, which are known as redband steelhead. Also the large Kamloops rainbow trout is included.Inland Redband Trout - ''Oncorhynchus mykiss gairdneri''
fishandgame.idaho.gov

References

Oncorhynchus Columbia River Trout, Columbia Trout, Columbia Trout, Columbia Trout, Columbia Natural history of Idaho Natural history of Montana Natural history of Oregon Natural history of Washington (state) {{Salmoniformes-stub