Elk River is the home of the Idaho Champion Western Red Cedar Tree, the largest tree in the state. Estimated to be over 3000 years old this giant is more than 18 feet in diameter and stands 177 feet tall.
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President Theodore Roosevelt established the Caribou National Forest in 1907. The area now covers more than 1 million acres in southeast Idaho.
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Shoshone Falls, Idaho, The Niagara of the West, spills over a 212-foot drop near Twin Falls.