Fort Meigs, the largest wooden-walled fortification in North America, sits on the south bank of the Maumee River in Perrysburg, Ohio, where it earned its nickname the Gibraltar of the Northwest during the War of 1812.

Built in the brutal winter of 1813 under General William Henry Harrison's orders, the ten-acre fort survived two British sieges. During the first, Harrison came up with a novel way to replenish his dwindling supply of cannonballs: a gill of whiskey for every spent British ball retrieved. About a thousand were acquired this way. Tecumseh, whose confederation surrounded the fort, grew so frustrated with defenders who dug into the earthworks like burrowing animals that he reportedly complained it was impossible to fight "people who live like groundhogs."

VoiceMap's self-guided audio tour traces the fort's two sieges in forensic detail, weaving in soldier diary entries, Dudley's catastrophic Massacre, and Tecumseh's famous confrontation with the British commander Proctor.