1964 Map of Yorba Linda

About this map

Placentia and Yorba Linda sit at the edge of rapid suburban expansion in the mid-1960s, framed by the intensive petroleum extraction of the surrounding Oil Field. While residential tracts grow near the Richard M Nixon Sch, much of the landscape remains defined by the steep topography of the Puente Hills and Chino Hills. The map captures a moment when citrus groves and open canyons like Tonner Canyon and Carbon Canyon still separated established towns from newer developments like Diamond Bar and the secluded Sleepy Hollow.