A centuries-old cannon has been discovered in southern Arizona – and officials say it’s the oldest firearm unearthed in the continental U.S. The 40-pound bronze cannon, or wall gun, is believed to ...

Researchers have uncovered what they believe to be the "oldest firearm" ever found in the continental United States. This valuable artifact, a bronze cannon or "wall gun," was recovered from a site ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Archaeologists excavating a Spanish stone-and-adobe structure in Arizona uncovered a 480-year-old gun.

A wall gun found in southern Arizona is believed to be the oldest ever found in the continental U.S. Researchers say the firearm is linked to the 1539-1542 expedition led by Francisco Vázquez de ...

A 40-pound bronze cannon, or wall gun, believed to have been part of the Francisco Vázquez de Coronado expedition has been discovered in southern Arizona. Photo from Deni J. Seymour A centuries-old ...

Archaeologists excavating a Spanish stone-and-adobe structure in Arizona uncovered a 480-year-old gun. Experts believe the “wall gun” was associated with the Coronado expedition. The wall gun is now ...