1953 Map of Cucamonga Peak

About this map

The San Gabriel Mountains dominate the northern half of this landscape, rising sharply from the alluvial plains below to peaks like Cucamonga Peak and Ontario Pk. This 1953 field check captures the mid-century transition of the foothills, where the citrus-belt settlements of Alta Loma and Etiwanda sit at the base of steep drainage systems like Cucamonga Canyon and Day Canyon. The economic infrastructure of the era is clearly visible through the dual rail lines of the Atchison Topeka and Santa Fe and the Pacific Electric, which parallel Highland Avenue.