1967 Map of Yucaipa

About this map

The Yucaipa Valley and surrounding foothills are captured during a period of significant suburban expansion in the late 1960s and early 1970s. The map illustrates a complex water management infrastructure essential to this arid region, featuring percolation basins, the Crafton Reservoir, and numerous named canyons like Morton Creek and Zanja Creek. While the established centers of Mentone and Yucaipa show dense street grids, the purple map revisions highlight the rapid urban growth pushing into formerly open spaces near Calimesa and Dunlap Acres.