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1949 Map of Prado Dam

Name: 1949 Topographic Map of Prado Dam
Creator: U.S. Geological Survey
Published: 1963
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1963

About this map

Prado Dam and its expansive Prado Flood Control Basin anchor this late-1940s landscape at the confluence of Chino Creek and the Santa Ana River. The area reflects a complex mid-century transition from institutional and military use to suburban and recreational development. To the north, the massive California Institution for Men and the Cal-Aero Flight Academy dominate the Chino valley floor, while the Los Serranos Country Club and Rancho Santa Ana Botanic Gardens signify the emerging leisure economy.

Social history is embedded in the presence of the Junior Republic School and the Casa Colinda Crippled Childrens Home near the Chino City Boundary. The rugged topography of the Chino Hills is punctuated by early petroleum exploration, with several Oil Wells and a gravel pit scattered throughout the canyons. Transportation is defined by the Atchison Topeka and Santa Fe railroad cutting through the Santa Ana Canyon near Esperanza.