A discerning regional geography which tells much about a large part of the Mexican Northwest and American Southwest.
—Pacific Historical Review
Readable, interesting, and well illustrated. Detailed documentation gives the reader an introduction to a wealth of published material which otherwise is difficult to find.
—Quarterly Review of Biology
A first-rate study, bringing together virtually all of the facets of a large and complex desert region. It is a fine job of geographic presentation—the result of a combination of field study and exhaustive bibliographic research. . . . The writing is interesting and expressive.