B-08 The Clays of Eastern Colorado and Data Concerning Those Near Some Centers of Population Elsewhere in the State B-08 The Clays of Eastern Colorado and Data Concerning Those Near Some Centers of Population Elsewhere in the State
B-09 Geology of Ore Deposits of the Bonanza District B-09 Geology of Ore Deposits of the Bonanza District, Saguache County, Colorado
B-04 Geology and Ore Deposits of the Monarch District and Tomichi Districts B-04 Geology and Ore Deposits of the Monarch District and Tomichi Districts, Colorado
B-03 Geology and Ore Deposits of the Alma District B-03 Geology and Ore Deposits of the Alma District, Park County, Colorado
B-01 A Preliminary Report on the Geology of the Monarch Mining District B-01 A Preliminary Report on the Geology of the Monarch Mining District, Chaffee County, Colorado
B-02 Geology of the Grayback Mining District B-02 Geology of the Grayback Mining District, Costilla County, Colorado