Found 1 collection related to Mines%20and%20mineral%20resources%20--%20Colorado

Various papers of Robert Green Ingersoll, the American politician and orator frequently called "The Great Agnostic," including brief letters, photographs, autographs, and ephemera relating to his lectures. Also present is material relating to the Pinafore Mining Company in Denver, Colorado, and the Sun Gas-Lamp Company in Laramie, Wyoming. Ingersoll sat on the board of both companies less