Fort Union Trading Post National Historic Site - Credit: Wikimedia Commons
Fort Union Trading Post National Historic Site - Credit: Wikimedia Commons
Fort Union Trading Post National Historic Site is a partial reconstruction of the most important fur trading post on the upper Missouri River from 1829 to 1867. The fort site is about two miles from the confluence of the Missouri River and its tributary, the Yellowstone River, on the Dakota side of the North Dakota/Montana border, 25 miles from Williston, North Dakota. Read more on Wikipedia
Source: en.wikipedia.org