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1942 Map of Arroyo Grande

Name: 1942 Topographic Map of Arroyo Grande
Creator: U.S. Geological Survey
Published: 1949
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1949

About this map

Avila and Arroyo Grande anchor this central coast landscape, where the rugged San Luis Range meets the Pacific. The survey reveals a complex transportation network defined by two distinct rail systems: the Southern Pacific and the Pacific Coast (Narrow Gage), the latter winding through Price Canyon and serving the settlement at Edna. Local industry and social life are marked by features like Sycamore Springs and Mine Hill, alongside coastal developments at Pismo Beach and Oceano Beach.

The southern portion of the map identifies the unique hydrology of the Cienega Valley, characterized by a chain of small water bodies including Oso Flaco Lake, Black Lake, and Jack Lake. This area, bordered by the Santa Lucia Range and the Los Padres National Forest, shows a pattern of rural schoolhouses such as Canyon Sch and Santa Fe Sch that supported scattered ranching and agricultural communities before mid-century expansion changed the coastline.