
The San Juan Ridge dominates this 1990s topographic view of the California gold country, where the legacy of hydraulic mining remains etched into the landscape. Extensive tailings and sprawling excavation areas such as the French Corral Diggings and Birchville Diggings show the massive scale of 19th-century operations. The Yuba River flows through the center of the quadrangle, flanked by the South Yuba River State Park Unit and the historic community of Bridgeport, notable for its Historical Covered Bridge. Modern industrial footprints appear alongside these historical sites, including the New Colgate Powerhouse and the waters of Harry L Englebright Lake. To the south, Pleasant Valley retains its rural character with the Pleasant Valley Sch and several small cemeteries serving the local area.
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This is the sole edition of this map. No revisions or reprints were ever made.
1888 · Smartsville
USGS Topo · 1:125,000
1891 · Smartsville
USGS Topo · 1:125,000
1892 · Smartsville
USGS Topo · 1:125,000
1894 · Smartsville
USGS Topo · 1:125,000
1895 · Smartsville
USGS Topo · 1:125,000
1941 · Bangor
USGS Topo · 1:62,500
1944 · Bangor
USGS Topo · 1:62,500
1948 · Nevada City
USGS Topo · 1:62,500
1948 · Oregon House
USGS Topo · 1:24,000
1948 · Camptonville
USGS Topo · 1:24,000