Home Forum Resources Shop Journey Log Back to map


Lewis and Clark
SHOWING RECORD: 3 of 17   Cutthroat Trout
PreviousNextJournals and Maps
image: Cutthroat Trout
Photograph by Dale C. Spartas/Corbis
Cutthroat Trout

Oncorhynchus clarki


First Noted by Expedition
June 13, 1805, at Great Falls, Cascade County, Montana.

Back dark olive; sides variable: silvery, olive, reddish to yellow-orange; belly lighter; dark spots on back, sides, and on median fins. Mouth extends beyond eye; bright red to red-orange slash mark on each side of throat, particularly visible in breeding males. Length: to 30 in (76 cm). Weight: to 41 lbs (18.6 kg).

Inshore marine and estuarine waters; lakes; coastal, inland, and alpine streams.

From southern Alaska to northern California; inland from southern British Columbia and Alberta south to New Mexico; eastern California to central Colorado. Introduced in western United States.

Endangered Status
Three subspecies of the cutthroat trout are listed as threatened in the United States: the Lahontan in California, Nevada, Oregon, and Utah; the Paiute in California; and the greenback in Colorado.

There are more than 10 subspecies of cutthroat trout, locally called "native trout," which vary in coloration and size.

Species information from enature.com

Subscribe Online
Your subscriptions help National Geographic conservation efforts worldwide >>

Brewer's Blackbird
Bushy-Tailed Woodrat
Cutthroat Trout
Long-Billed Curlew
Pacific Nighthawk
Prairie Rattlesnake
Swift Fox
Water Terrapin
Western Meadowlark
Mountain Lady's Slipper
Narrowleaf Cottonwood