I can't factually back this up, but I spent a few years in the area, some in Lewiston, some in Kamiah, and I saw for myself during the winter of 2004 that parts of the Clearwater did indeed seem to freeze from the bed upwards, north of Orofino headed towards Lewiston. Can't seem to find anything online, but that was my experience.
Clearwater River - Clearwater River is 9,645 square miles
The Clearwater River in Idaho.
Rivers include the Snake River, the Salmon River, the Payette River, the Clearwater River, and the Boise River, among many others. The largest lake is Lake Pend Oreille, in northern Idaho.
The Snake River flows through Idaho and empties into the Columbia River. The Snake River is the largest tributary of the Columbia River and plays a significant role in the region's ecosystem and economy.
Well, honey, the lowest point in Idaho is the Snake River, specifically Lewiston, which sits at a whopping 738 feet above sea level. So, if you're looking to hit rock bottom in Idaho, that's the place to be. But hey, don't knock it 'til you try it - Lewiston may be low, but it's got its own charm.
Lewis and Clark discovered the Salmon River and the Clearwater River in Idaho on their expedition. They also encountered the Nez Perce Native American tribe and established peaceful relations with them during their journey.
The name Idaho as in the state has Native American originOriginally suggested for Colorado, the name "Idaho" was used for a steamship which traveled the Columbia River. With the discovery of gold on the Clearwater River in 1860, the diggings began to be called the Idaho mines. "Idaho" is a coined or invented word, and is not a derivation of an Indian phrase "E Dah Hoe (How)" supposedly meaning "gem of the mountains."
The major rivers in Idaho are Coeur d'Alene River, Snake River, St. Joe River, St. Maries River, and Kootenai River. Additional rivers in Idaho include Bear River, Big Lost River, Big Wood Eiver, Blackfoot River, Boise River, Clearwater River, Cub River, Jarbridge River, Lehmi River, Little Lost River, Malad River, Middle Fork Salmon River, Pack River, Priest River, Raft River, Salmon River, Teton River, and Weiser River.
Robert Winston Keeler has written: 'An upland hunting camp on the north fork of the Clearwater River, north-central Idaho'
The Snake River <3
American River is a river in Idaho County, Idaho .
The answer to the question what is the large river in Idaho is the Snake River