Fish

Steelhead Trout

Oncorhynchus mykiss
Fish Clearwater River, near present-day Orofino, Idaho New to Western Science
Steelhead Trout

Photo: USFWS, Public domain

Common Names
Salmon Trout
Habitat
Fort Clatsop
Conservation
Secure
First Observed
1805-10-08
Observed At
Clearwater River, near present-day Orofino, Idaho

Sea-run rainbow trout silvery in color. Introduced for sport and commercial fishing. Many native populations threatened.

Recent sightings

Where it’s being seen today

5 research-grade iNaturalist observations between 2017–2025. Most recent: 2025-05-25. Sourced from Terrain360 trail captures, cached locally.

Journal References

15 journal entries mention Steelhead Trout

Jun 16 1805
Great Falls of the Missouri — Joseph Whitehouse: June 16, 1805
...caught & dryed a large quantity of fine fish, which we call Salmon troute.
Aug 13 1805
Camp Fortunate / Shoshone contact — John Ordway: August 13, 1805
...oon the current more gentle, we had caught a nomber of fine Trout this Several days passed high clifts of rocks and fine Springs on S. Side Saw a nomber of large ott...
Aug 14 1805
Camp Fortunate / Shoshone contact — Patrick Gass: August 14, 1805
...hat we could discover. There are some fish in the river and trout of a large size, and of the black kind. We went 15 miles and encamped on the South side where we ha...
Aug 15 1805
Camp Fortunate / Shoshone contact — John Ordway: August 15, 1805
...Mountains, we passed Several bad rapids, caught a nomber of Trout in the Eddy below the rapids, now the river more Shallow, passed high clifts of rocks. & rough knob...
Aug 19 1805
Camp Fortunate, Sacagawea reunites with Cameahwait — John Ordway: August 19, 1805
...ggage & makeing pack saddles &c. we caught a nomber of fine Trout covred all over with black spots in Stead of red. in the afternoon the hunters returned to Camp & h...
Aug 20 1805
Camp Fortunate, Sacagawea reunites with Cameahwait — John Ordway: August 20, 1805
... a verry large beaver, the Indians eat it. a nomber of fine Trout caught this day. Cap* Lewis went a Short distance down the River and looked out a place undiscovere...
Aug 22 1805
Camp Fortunate, Sacagawea reunites with Cameahwait — John Ordway: August 22, 1805
...sh drag of willows and caught 520 fine pan fish. 2 kinds of Trout & a kind resembling Suckers, we divided them with the Indians, gave them a meal of boiled corn & be...
Aug 24 1805
Camp Fortunate, Sacagawea reunites with Cameahwait — John Ordway: August 24, 1805
... a small shower of rain one of the men caught several large Trout one of the hunters came to camp had killd nothing.
Aug 27 1805
Lemhi Valley, preparing to cross Bitterroots — Joseph Whitehouse: August 27, 1805
... of fine Trout which would weigh ab! 8 pound Some call them Salmon Trout. others call them real Salmon, but they are not So redas the large Salmon. the Indian women are mos...
Sep 9 1805
Travelers' Rest near present-day Lolo, MT — John Ordway: September 9, 1805
... being abundantly watered on either side by fine, beautiful trout streams." Wheeler. 2 Clark gives the distance traveled as twenty-two miles. Coues locates the day's...
Oct 26 1805
Celilo Falls and The Dalles portage — John Ordway: October 26, 1805
...ir bot- toms and repair them, one of the men giged a Sammon Trout in the River, towards evening the hunters returned to Camp had killed 5 Deer a goose and a gray Squ...
Nov 12 1805
Columbia estuary, storm-bound, vote on winter camp — John Ordway: November 12, 1805
...ek and got a more com- fortable Camp, we giged several more Trout in this creek. 1 On the lee side of Point Ellice, and directly across the river from Astoria. Wheel...
Mar 14 1806
Lewis: March 14, 1806
...safely asserted that the red Charr and both speceis of the salmon trout remain in season longer in the fall of the year than the common Salmon; but I have my doubts wheth...
Apr 10 1806
Clark: April 10, 1806
... precure no provisions from those people except four white Salmon trout. at 10 oClock Sergt. Pryor and Gibson joined us with Collins who had killed 3 deer. these were all...
Apr 10 1806
Lewis: April 10, 1806
...ld obtain no provision from those people except four white salmon trout. at ten oclock Sergt. Pryor and Gibson joined us with Collins who had killed 3 deer. these were a...

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