1907 Map of Tesla

About this map

Tesla and the industrial outposts of Pottery and Carnegie define the rugged interior of the Diablo Range in this 1905 survey. The map records a landscape transitioning from the open grazing lands of the Livermore Valley and Las Positas Valley into the steep, deeply dissected ridges of the Crane Ridge and Cedar Mountain Ridge. Transportation is anchored by the Southern Pacific and the Niles and Sacramento Line, which skirt the northern hills through Altamont and Midway. Along the winding Corral Hollow, the concentration of industrial and residential labels like the Sweet Springs Halfway House and Buckeye Club suggests a bustling corridor of activity centered on the local coal and clay deposits, far removed from the larger valley settlements like Greenville and Ulmar. This document captures the intricate network of arroyos, including Arroyo Mocho and Arroyo del Valle, that dictated the early paths and property lines through these hills.