This historical map portrays the area of Diablo in 2012, primarily covering San Ramon as well as portions of Danville, Blackhawk, and Camino Tassajara. Featuring a scale of 1:24,000, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the Diablo region at the time. Published in 2012, it is the sole known edition of this map.
This is the sole edition of this map. No revisions or reprints were ever made.
1896 · Mt. Diablo
USGS Topo · 1:62,500
1897 · Concord
USGS Topo · 1:62,500
1898 · Mt. Diablo
USGS Topo · 1:62,500
1899 · Haywards
USGS Topo · 1:62,500
1906 · Pleasanton
USGS Topo · 1:62,500
1915 · Haywards
USGS Topo · 1:62,500
1915 · Concord
USGS Topo · 1:62,500
1916 · Lone Tree Valley
USGS Topo · 1:31,680
1941 · Pleasanton
USGS Topo · 1:62,500
1942 · Concord
USGS Topo · 1:62,500