B-28 Oil and Water Possibilities of Parts of Delta and Mesa Counties, Colorado

B-25 Oil Shales of Colorado

B-16 Radium, Uranium, and Vanadium Deposits of Southwestern Colorado

B-19 The Cretaceous Formations of the Northeastern Colorado Plains and the Foothills Formations of North-Central Colorado

B-23 Some Anticlines of Routt County, Colorado

B-15 Manganese Deposits of Colorado

GEO-1918-01 The Denver and Salt Lake Railroad

B-13 Geology and Ore Deposits of the Platoro-Summitville Mining District

B-03 Geology and Ore Deposits of the Alma District, Park County, Colorado

GEO-1886-01 Geology and Mining Industry of Leadville, Colorado with Atlas