A Worldwide Bibliography of the Grand Canyon and Lower Colorado River Regions (open access PDFs)

[Oxytropidoceras]

The below publications have to be seen to understand

the enormous volume of information that they contain.

Also, the number of pages listed below are correct and

are not typographic errors.

 

 Spamer, E.E., 2018. A Worldwide Bibliography of the Grand

Canyon and Lower Colorado River Regions in the United

States and Mexico. 1535–2018. Raven’s Perch Media. 11,728 pp.

Spamer, E.E., 2021. Cartobibliography of the Grand Canyon

and Lower Colorado River Regions in the United States and

Mexico 1535–2021. The Plains and the Rockies : a critical

bibliography of exploration, adventure and travel in the

American West. Raven’s Perch Media. 1,178 pp

 

More open access publications by Earle Spamer

American Philosophical Society, University Library

 

Yours,

 

Paul H.