History of Fort Union Trading Post
In 1828 the Assiniboine Indians requested that John Jacob Astor’s American Fur Company establish a trading post in their homeland to protect them from hostile tribes. Kenneth McKenzie thus founded Fort Union in what is now North Dakota. Strategically located near the homelands of 10 Northern Plains tribes, Fort Union, possibly first known as Fort Henry or Fort Floyd, was built in 1828 or 1829.









