1912 Map of Mariposa

About this map

Mariposa Grove Big Trees stands at the northern edge of this survey, marking the transition from the high Sierra foothills toward the developing ranchlands and mining districts of the Central Valley. The landscape is a network of mid-elevation economies, where the Southern Pacific line terminates at Raymond, a vital shipping point for the nearby Marble Quarry at Knowles. Along the Chowchilla River and Fresno River, the map documents a transition from old camps to established settlements like Coarse Gold and Fresno Flats. This 1910s era shows an active industrial footprint, from the Standard Mill and Texas Flat Mine to the early hydroelectric infrastructure of the Powerhouse on the San Joaquin. Pockets of social history are visible in the many rural schoolhouses, such as Oakvale School and Dennis School, and the designated Indian Settlement near the Fresno River.