Both the North West Co. and the Hudson's Bay Co. built closely adjoining forts called Vermilion in 1808, on North Saskatchewan river, on north side directly opposite mouth of Vermilion river, Alberta. Both these forts were abandoned on the same day, May 31 1810, and the goods were transported to new forts at the mouth of White Earth river about 87 miles upstream. The Hudson's Bay Co. maintained their post at White Earth river until about 1870. A. Henry Jr. was there in September 1808. It was sometimes called Lower Fort Des Prairies. See White Earth river and Old White Mud Fort. Maps No. 11, 40, 36.