
San Ardo Oil Field occupies the high ground east of the Salinas River, illustrating the industrial footprint of petroleum extraction in Monterey County during the mid-1970s. The valley below is dominated by the Southern Pacific railroad corridor and U S Highway 101, which parallel the river's winding course through Bradley. To the south and west, the landscape shifts toward massive water management projects and military utility. The confluence of the San Antonio River and Nacimiento River is transformed by the San Antonio Dam and Nacimiento Dam, creating expansive reservoirs that straddle the Monterey Co San Luis Obispo Co line. These waters border the northern reaches of the Camp Roberts Military Reservation, while isolated landmarks like Hames Valley Hall and the Cem near the river provide evidence of the area's rural social fabric.
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This is the sole edition of this map. No revisions or reprints were ever made.
1912 · San Ardo
USGS Topo · 1:31,680
1915 · Priest Valley
USGS Topo · 1:125,000
1919 · San Miguel
USGS Topo · 1:62,500
1919 · King City
USGS Topo · 1:62,500
1919 · Bryson
USGS Topo · 1:62,500
1919 · Paso Robles
USGS Topo · 1:62,500
1919 · Bradley
USGS Topo · 1:62,500
1919 · Adelaida
USGS Topo · 1:62,500
1919 · San Simeon
USGS Topo · 1:62,500
1932 · Adelaida
USGS Topo · 1:62,500