1927 Map of Piedras Blancas

About this map

Piedras Blancas Point anchors this coastal survey, serving as a critical navigational landmark on the California shore during the early twentieth century. The terrain is defined by short, steep drainages such as Arroyo de la Cruz and Arroyo del Corral that cut through the foothills of Pine Top Mtn before reaching the Pacific Ocean. This 1917 data, published in the late 1920s, shows the rural isolation of the San Luis Obispo coast before modern highway development.