Hudson's Bay Co. fort on the Souris river near its confluence with the Assiniboine, Manitoba. This was the first of the H. B. Co. forts erected in that region. Built in 1793 for trade with the Mandan Indians. Brandon House was built in 1794 nearby and this forced the North West Co. to abandon Pine Fort (on the north bank of Assiniboine river). Map No. 3.