Siege Of Augusta

The Siege of Augusta began on May 22, 1781 and was conducted by General Andrew Pickens and Colonel Henry "Light Horse Harry" Lee against British troops occupying the town of Augusta, Georgia. Fort Cornwallis, the primary defenses, were successfully exposed to cannonfire by the construction of a tower 30 feet (9.1 m) high on which the Americans mounted a small cannon. The garrison surrended on June 6.

http://en.wikipedia.org/wiki/Siege_of_Augusta