Which state was populated by the expanse of the Oregon Trail, which can also be found in the Palouse region of the United States?
Palouse The Palouse ( ) is a region of the northwestern United States, encompassing parts of southeastern Washington, north central Idaho and, by some definitions, parts of northeast Oregon. It is a major agricultural area, primarily producing wheat and legumes. Situated about 160 mi north of the Oregon Trail, the region experienced rapid growth in the late 19th century and was once Washington's most populous region, surpassing even the Puget Sound area.
Colorado Trail The Colorado Trail is a long-distance trail running for 486 mi from the mouth of Waterton Canyon southwest of Denver to Durango in Colorado, United States. Its highest point is 13271 ft above sea level, and most of the trail is above 10000 ft . Despite its high elevation, the trail often dips below the alpine timberline to provide refuge from the exposed, storm-prone regions above.