This collection contains articles, biographical essays, slides, notes and other materials from Homer Aschmann's tenure as professor in the Geography department at the University of California, Riverside. The bulk of the collection consists of reprints of articles by various experts in the field of geography. Many of the reprints include the author's signature as well as a personal message written to Aschmann.

The collection contains materials related to Chilean history and the Movimiento de Izquierda Revolucionaria (MIR), a communist and former urban guerrilla organization founded in Chile in 1965. Items in the collection include news clippings related to the MIR, speeches by Juntas and policy statements, and publications and other materials related to Chilean opposition materials produced in Quebec post-1973.

The collection consists of a photograph album compiled by R.J. Law Jr. during his time serving in the Pacific Fleet of the United States Navy in 1921. The 38 photographs in the album depict people and places in Panama City and the Canal Zone, followed by similar images taken in Santiago, Chile. Photographs in the collection also show sailors participating in group festivities on the ship.

This collection contains press clippings and other material regarding Latin America that was collected by Bobbye S. Ortiz, a feminist and social activist that served as editor of the Monthly Review. Materials in this collection primarily relate to Chile during the years that Salvador Allende served as president and the aftermath immediately following the coup and his death.