The September 1812 siege
Fort Madison was poorly placed from the start. It sat at the base of a bluff next to a ravine, ground from which attackers could fire down into the post. About sixty soldiers held a five-cornered fort roughly 120 by 160 feet.
By September 1812 the War of 1812 had reached the Upper Mississippi. About two hundred Ho-Chunk and Sauk warriors attacked the fort for four days, firing from a river bank thirty paces from the walls and a wooded spring run that gave them cover the garrison could not clear. Their aim was to burn the post out. The soldiers answered with muskets and a howitzer and burned their own trading house outside the walls rather than leave it as cover, and the attackers withdrew when their ammunition ran out.
It was a reprieve, not a victory. The garrison would hold on for another year before the situation became impossible.