Detailed map of Granite Gorge section of the Grand Canyon from the pamphlet titled, "Titan of Chasms: Grand Canyon of Arizona."

Letter from Carl T. Hayden to C. H. Gensler, Havasupai Indian Reservation, regarding Hualapai and Cataract Canyons geography.

Map of proposed addition to Grand Canyon National Park Boundaries. Circa 1932.

Color map of the Grand Canyon National Park proposed boundaries with animal habitat zones identified for deer, mountain lion and mountain sheep.

Map of Proposed Boundary Changes to Grand Canyon National Park.

Report describing the history, economics, and geography of Laos and then the history of its rising communist movement, Lao Issara.

Article about the historical, economic, and social makeup of Laos, regarding especially the spread of Christianity.

Article about the land and geographical survey of two regions in Laos: Nam Kueung and Ban Houei Sai

A report on the history, geography, government system, and geology of Saravane Province on Laos.