Byron Hot Springs sits at the northeastern edge of the Diablo Range, serving as a distinct focal point where the arid foothills meet the intensive water management systems of the Central Valley. This 2015 survey illustrates the complex intersection of natural drainage and modern engineering, as the Byron-Bethany Irrigation Canal and S Bay Aqueduct cut across the landscape to redirect the flow of water. The terrain rises sharply to the southwest toward Brushy Peak, while the northern portion of the map transition into the flatter lands near the settlement of Byron. The presence of the Byron Airport and a network of roads like Camino Diablo and N Vasco Rd show the area's continued role as a transportation corridor connecting the East Bay to the agricultural heartland. Natural waterways such as Kellogg Cr and Marsh Cr thread through the hills, providing a baseline for the historical ranching and resort developments that defined this region.
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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