Portola serves as the central hub of this mountain landscape, positioned along the Middle Fork Feather River between the massive Plumas National Forest and Tahoe National Forest. The settlement pattern reflects a mix of compact residential blocks in town and outlying communities like Delleker and Beckwourth. For those researching local history, the map identifies specific burial sites including Whispering Pines Cemetery and Shady Grove Cemetery. The terrain is defined by dramatic elevation changes, rising from the Sierra Valley floor to the prominent Beckwourth Peak. To the north, the water system is anchored by Lake Davis, which feeds into Big Grizzly Cr as it winds through several high-altitude meadows such as Crocker Meadow and Burnham Meadow. This survey documents a modern snapshot of a region where mountain geography and forest boundaries dictate the limits of human expansion.
92 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.
1890 · Sierraville
USGS Topo · 1:125,000
1891 · Downieville
USGS Topo · 1:125,000
1892 · Sierraville
USGS Topo · 1:125,000
1893 · Downieville
USGS Topo · 1:125,000
1894 · Sierraville
USGS Topo · 1:125,000
1895 · Downieville
USGS Topo · 1:125,000
1896 · Downieville
USGS Topo · 1:125,000
1897 · Downieville
USGS Topo · 1:125,000
1937 · Blairsden
USGS Topo · 1:48,000
1943 · Blairsden
USGS Topo · 1:62,500