1927 Map of Piedras Blancas

About this map

Point Piedras Blancas serves as the dominant coastal landmark in this 1917 survey of the San Luis Obispo coastline. The shoreline is defined by steep bluffs and several notable offshore formations, including La Cruz Rock and the curiously named Harlech Castle Rock. Inland, the terrain rises sharply toward Pine Top Mtn and Yellow Hill, cut by numerous drainage systems such as Arroyo la Cruz and Arroyo de los Chinos. The presence of the Washington School and the L H (lighthouse) at the point suggests a small but established coastal community and maritime station during the early twentieth century. This map captures the region before modern highway development, showing a landscape defined by its rugged proximity to the Pacific Ocean and the sprawling Piedra Blanca lands.