Geologic map of the eastern half ot the Vail 30ʹ x 60ʹ quadrangle, Eagle, Summit, and Grand Counties, Colorado /

by Kellogg, Karl S.
Published 2011

Geologic map of the Texas Mountain quadrangle, Rio Blanco County, Colorado

Published 1997

Geologic map of Gunnison Gorge National Conservation Area : Delta and Montrose counties, Colorado /

Published 2004

Geological and geographical atlas of Colorado and portions of adjacent territory /

by Hayden, F. V. (Ferdinand Vandeveer), 1829-1887
Published 1877

Rocky Mountain National Park, Colorado /

Published 2006

Geologic map of the Bailey 30§ by 60§ quadrangle, north-central Colorado /

by Ruleman, C. A. (Chester Allan)
Published 2011

Historic trail map of the Leadville 1⁰ x 2⁰ quadrangle, central Colorado /

Published 2004