
Merced Co and Fresno Co meet along a sharp topographical boundary in this early 1920s survey of the Central Valley foothills. The terrain is dominated by the deeply incised drainage of Little Panoche Creek, which cuts through the eastern slopes toward the valley floor. This advance sheet, surveyed in 1920, emphasizes the complex contouring of the Laguna Seca Ranch area during a period of transition in California's land use. The map focuses on the natural hydrology and elevation changes that define the border between these two counties, capturing the landscape just as regional state engineering efforts, under W. F. McClure, were expanding across the interior.
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This is the sole edition of this map. No revisions or reprints were ever made.
1913 · Panoche
USGS Topo · 1:125,000
1920 · Carrisalito Spring
USGS Topo · 1:31,680
1921 · Tierra Loma School
USGS Topo · 1:31,680
1922 · Charleston School
USGS Topo · 1:31,680
1922 · Dos Palos
USGS Topo · 1:31,680
1922 · Ortigalita
USGS Topo · 1:31,680
1923 · Laguna Seca Ranch
USGS Topo · 1:31,680
1923 · Tierra Loma School
USGS Topo · 1:31,680
1923 · Little Panoche
USGS Topo · 1:31,680
1943 · Ortigalita Peak
USGS Topo · 1:62,500