Fort Vermillion (1) (1822-1850) - A Columbia Fur Company trading post and fort established in 1822 on the Missouri River about 6 miles south of present-day Gayville, South Dakota. Taken over by the American Fur Company in 1835. Abandoned in 1850. Also known as Dickson's Post
The post itself was a small stockaded one that was absorbed into the American Fur Company in 1835 and continued operating until 1850.
Current Status
Marker only located just south of SD-50 on 452nd Avenue. The post was located about six miles below Gayvill. The GPS coordinates of the site are approximate while the coordinates of the marker are correct.
Roberts, Robert B., Encyclopedia of Historic Forts: The Military, Pioneer, and Trading Posts of the United States, Macmillan, New York, 1988, 10th printing, ISBN 0-02-926880-X, page 734-735.