
San Miguel anchors the southern portion of this landscape, situated along the broad valley formed by the Salinas River. The terrain is defined by a series of parallel canyons and ridges, including the prominent Vineyard Canyon and Mahoney Canyon, which cut through the hills east of the river. The boundary between Monterey and San Luis Obispo counties bisects the map, illustrating the administrative divide that separates the settlements of Nacimiento and McKay from the historic core of San Miguel. The road network, featuring routes like Mission St and Indian Valley Rd, follows the natural contours of the land, connecting the river valley to the agricultural hinterlands. To the north, the confluence of Big Sandy Cr and the Salinas River marks a shift in the drainage patterns, while the deep recesses of Portuguese Canyon and Deer Canyon provide insight into the drainage systems that feed the regional watershed.
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This is the sole edition of this map. No revisions or reprints were ever made.
1919 · San Miguel
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
1932 · Adelaida
USGS Topo · 1:62,500
1941 · Bradley
USGS Topo · 1:62,500
1942 · Adelaida
USGS Topo · 1:62,500
1943 · Paso Robles
USGS Topo · 1:62,500
1947 · San Luis Obispo
USGS Topo · 1:250,000
1947 · San Miguel
USGS Topo · 1:62,500