Bilk Creek Mountains and the elevated reaches of Ninemile Summit define this high-desert landscape in Humboldt County. The 2011 survey reveals a territory where water sources dictate the geography of human activity, centered around Nine Mile Ranch and a network of remote springs such as Agate Spring, Basque Spring, and Dacite Spring. These points of reliable water historically supported the livestock and ranching operations that characterize the region’s land use.
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1886 · Disaster
USGS Topo · 1:250,000
1893 · Disaster
USGS Topo · 1:250,000
1954 · Vya
USGS Topo · 1:250,000
1958 · Vya
USGS Topo · 1:250,000
1961 · Quinn River Crossing
USGS Topo · 1:62,500
1961 · Thacker Pass
USGS Topo · 1:62,500
1961 · Trident Peak
USGS Topo · 1:62,500
1961 · Disaster Peak
USGS Topo · 1:62,500
1962 · Vya
USGS Topo · 1:250,000
1979 · Denio
USGS Topo · 1:100,000