The S Fork American River corridor anchors this El Dorado County landscape, serving as a vital artery for both infrastructure and recreation. Historically significant sites like Riverton and White Hall are situated along the riverbank, where the El Dorado Ditch follows the contours of the valley, signaling the area's legacy of water management and industrial development. The northern reaches of the map are dominated by the Union Valley Reservoir and its associated Union Valley Powerhouse near Raffetto. Evidence of the region's earlier timber and land-use history appears in labels such as Blair Mill and family-named landmarks like McConnel Place and Potts Cabin. High-elevation fire monitoring is represented by the Big Hill Lookout Tower atop Big Hill, overlooking a terrain marked by deep ravines like Windmiller Ravine and the broad Peavine Ridge.
135 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1889 · Pyramid Peak
USGS Topo · 1:125,000
1891 · Placerville
USGS Topo · 1:125,000
1891 · Pyramid Peak
USGS Topo · 1:125,000
1892 · Placerville
USGS Topo · 1:125,000
1893 · Placerville
USGS Topo · 1:125,000
1895 · Pyramid Peak
USGS Topo · 1:125,000
1896 · Pyramid Peak
USGS Topo · 1:125,000
1947 · Sacramento
USGS Topo · 1:250,000
1948 · Sacramento
USGS Topo · 1:250,000
1950 · Riverton
USGS Topo · 1:24,000