
Byron Hot Springs sits at the transition between the rising slopes of the Diablo Range and the western edge of the San Joaquin Valley. This landscape is defined by the sharp contrast between the rugged terrain of Brushy Peak and the flat expanses of the Central Valley. The map highlights a network of watercourses, including Marsh Cr and Kellogg Cr, which have historically shaped the drainage of these foothills. Contemporary land use is evident in the presence of the Byron Airport and an extensive system of recreational paths like the Brushy Peak Loop Trl and Tamcan Trl, illustrating the area's evolution from a thermal spring destination to a modern regional hub for outdoor activity. Significant roadways such as Vasco Rd and Camino Diablo Rd navigate the complex topography, connecting the isolated hills of eastern Contra Costa County to the broader agricultural valley floor.
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This is the sole edition of this map. No revisions or reprints were ever made.
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
1913 · Woodward Island
USGS Topo · 1:31,680
1914 · Brentwood
USGS Topo · 1:31,680
1914 · Bethany
USGS Topo · 1:31,680
1916 · Lone Tree Valley
USGS Topo · 1:31,680
1916 · Byron Hot Springs
USGS Topo · 1:31,680