
The Central Pacific Railroad defines the high mountain corridor of this late 19th-century survey, tracing a critical path through Summit Valley and over the legendary Donner Pass. This transit network supported early alpine settlements such as Soda Springs Station and the industrial hub at Truckee, where the Truckee River begins its eastward flow. Multiple Sawmill sites are scattered through the timber-rich drainage of Sawmill Creek and near Prosser, signaling the era's active logging economy.
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1889 · Pyramid Peak
USGS Topo · 1:125,000
1889 · Markleeville
USGS Topo · 1:125,000
1890 · Sierraville
USGS Topo · 1:125,000
1891 · Downieville
USGS Topo · 1:125,000
1891 · Carson
USGS Topo · 1:125,000
1891 · Markleeville
USGS Topo · 1:125,000
1891 · Colfax
USGS Topo · 1:125,000
1891 · Truckee
USGS Topo · 1:125,000
1891 · Reno
USGS Topo · 1:125,000
1891 · Placerville
USGS Topo · 1:125,000