Go deeper into the history of each park with scholarly articles and essays from Oxford University Press, freely available for the centennial year.

Oxford Bibliographies

Arid Environments

Arid environments cover almost half the earth’s land surface and embrace a considerable range of environmental conditions. Terms such as arid, desert, and dryland are commonly used interchangeably and without strict scientific usage, though “arid” is also used as a formal division of drylands within the widely used classification scheme in UN Environment Programme 1997 (cited under Defining Arid Areas).

Learn More →