![History of Gambo Powder Mills to highlight Windham Heritage Day](/3wzg0da/279.jpg)
History of Gambo Powder Mills to highlight Windham Heritage Day
Aug 10, 2006 · The Gambo Powder Mills were the first and longest running gunpowder mills in Maine, in business for more than 80 years during the 19th and early 20th centuries. The Gambo Powder Mills began in ...