The following HTML text is provided to enhance online
readability. Many aspects of typography translate only awkwardly to HTML.
Please use the page image
as the authoritative form to ensure accuracy.
FIGURE 4-7 Geomorphologic map of alluvial surfaces on the southwestern piedmont of the Tortolita Mountains. CF indicates Cottonwood Fan. Dot pattern shows areas subject to active modern flooding (Unit b). The other units are old, inactive parts of the piedmont. SOURCE: Reprinted with permission from Field (1994).