The main source for this information is an article written by Stephen L. Kling Jr. that appears on the website of the Missouri Society Sons of the American Revolution.
Although most Revolutionary War battles were fought in the original 13 American colonies, one notable skirmish during the conflict occurred just a few miles downriver from Alton.
The Battle of St. Louis, also known as the Battle of Fort San Carlos, took place on May 26, 1780, pitting Native Americans allied with the British against a hodge-podge of French and Spanish colonists defending the young city. It was the only Revolutionary War battle to occur west of the Mississippi River…