Geological and geographical atlas of Colorado and portions of adjacent territory

by F.V. Hayden, U.S. geologist in charge. ; "Corrected to date and printed in accordance with an act of Congress approved February 9th, 1881." ; Scanned raster images of original: 1 atlas ([2], 20 leaves of plates (some folded)) : 16 maps (some col.), ill. ; 69 cm. ; Original in the David Rumsey Collection; scanned by Cartography Associates.