
Altamont Pass serves as the central focal point of this mid-century topographic study, where the Southern Pacific and Western Pacific railroads navigate the complex terrain of the Diablo Range. The landscape is a transition between the Las Positas Valley and the higher elevations of Crane Ridge, marked by a network of ranch roads and rural infrastructure. Local education is represented by the Summit Sch and Green Dist School, while the era's agricultural and industrial character is evident at a winery near the valley floor and a gravel pit along the roads leading to Livermore.
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10 editions found
1896 · Mt. Diablo
USGS Topo · 1:62,500
1898 · Mt. Diablo
USGS Topo · 1:62,500
1906 · Pleasanton
USGS Topo · 1:62,500
1907 · Tesla
USGS Topo · 1:62,500
1911 · Byron Hot Springs
USGS Topo · 1:31,680
1914 · Bethany
USGS Topo · 1:31,680
1916 · Byron Hot Springs
USGS Topo · 1:31,680
1916 · Byron
USGS Topo · 1:62,500
1916 · Midway
USGS Topo · 1:31,680
1940 · Byron
USGS Topo · 1:62,500