Gold Run and Dutch Flat anchor this survey of the Sierra Nevada foothills, a landscape defined by its complex water systems and deep canyons. The map tracks the passage of the Boardman Canal and the Pulp-Mill-Ditch across high ridges like Moody Ridge and Chalk Bluff Ridge, while the North Fork American River carves through Giant Gap. This geography reveals a legacy of hydraulic infrastructure, where reservoirs like Sugar Pine Reservoir and Lake Alta support the region. Local history is grounded in the Dutch Flat Cemetery and the Alta School, providing specific points of interest for genealogists. The terrain is marked by named ravines and points such as Sheldon Ravine and Bogus Point, reflecting a history of mining and timber work that connected small settlements like Alta, Towle, and Baxter along the ridgelines.
91 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
This is the sole edition of this map. No revisions or reprints were ever made.
1891 · Colfax
USGS Topo · 1:125,000
1892 · Colfax
USGS Topo · 1:125,000
1894 · Colfax
USGS Topo · 1:125,000
1898 · Colfax
USGS Topo · 1:125,000
1900 · Colfax
USGS Topo · 1:125,000
1902 · Colfax
USGS Topo · 1:125,000
1938 · Colfax
USGS Topo · 1:125,000
1948 · Foresthill
USGS Topo · 1:24,000
1949 · Colfax
USGS Topo · 1:24,000
1949 · Chicago Park
USGS Topo · 1:24,000