
The Santa Ana River corridor defines this wartime landscape, dominated by the massive footprint of the Prado Dam and the surrounding Prado Flood Control Basin. At the edge of the Chino Hills, the California Institution for Men stands near the Los Serranos Country Club, marking a period of significant institutional and recreational growth in the region. The city of Corona appears as a centralized grid, served by the Santa Fe railroad and an Electric Railway, while the southern portion of the map is dominated by the steep terrain of the Santa Ana Mountains within the Cleveland National Forest. For researchers, the map captures the transition from agricultural valley floors to developed settlements like Norco and Home Gardens, before post-war suburbanization fully altered the canyon and river landscape.
56 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
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