Welcome to the Idaho State Historical Society! As Idaho’s trusted guide to the past, ISHS preserves and shares the stories, places, and artifacts that shape our state’s identity. Through our unique system of resources—including the Idaho State Museum, Idaho State Archives, Old Idaho Penitentiary, State Historic Preservation Office, and Historic Sites Program—we connect Idahoans with their history and ensure it endures for generations to come. Explore our site to discover exhibits, research collections, preservation programs, and ways to get involved in celebrating and protecting Idaho’s rich heritage.