The attacks at Fort Blue Mounds were two separate incidents which occurred on June 6 and 20, 1832, as part of the Black Hawk War. In the first incident, area residents attributed the killing of a miner to a band of Ho-Chunk warriors, and concluded that more Ho-Chunk planned to join Black Hawk in his war against white settlers. The second incident occurred east of the fort as a Sauk raiding party, estimated by eyewitnesses to be as large as 100 warriors, attacked two militiamen who were investigating noises heard the night before. Two members of the militia stationed at Blue Mounds were killed in the attack, and both their bodies were badly mutilated.

The Buffalo Grove ambush was an ambush that occurred on May 19, 1832 as part of the Black Hawk War. A six-man detail carrying dispatches from United States Colonel James M. Strode at Galena, Illinois to General Henry Atkinson at Dixon's Ferry was ambushed by Native Americans during the attack. William Durley was killed and buried near the site of the ambush. Durley's remains were initially interred by the party that would become victims of the St. Vrain massacre. Two other men had bullet holes in their clothing, but were uninjured. In 1910 the Polo Historical Society moved Durley's remains to a plot beneath a memorial they erected west of Polo, Illinois.