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AuthorBancroft, George J. (91)Welles, A. M. (Alonzo Merritt) (55)Marks, John H. (John Henry) (52)Wolf, Albert G. (32)Collins, George E. (29)Schwarz, Theodore E. (24)Stanhope, Philip R. (23)McClave, J. M. (James M.) (12)Holmes, W. I. (10)Ritter, Etienne A. (Etienne Alphonse) (10)View MoreSubjectMines and mineral resources -- Colorado -- Clear Creek County (155)Mines and mineral resources -- Colorado -- Gilpin County (105)Mines and mineral resources -- Colorado -- Boulder County (95)Mining claims -- Colorado -- Clear Creek County (94)Mining claims -- Colorado -- Gilpin County (82)Mines and mineral resources -- Colorado -- San Juan County (64)Mining claims -- Colorado -- Boulder County (62)Mines and mineral resources -- Colorado -- Summit County (58)Mining claims -- Colorado -- San Juan County (53)Mines and mineral resources -- Colorado -- Gunnison County (48)View More