
Six Rivers National Forest land dominates this section of Humboldt County, where steep terrain is defined by a series of prominent ridges and high clearings known locally as openings. Board Camp Mtn and Board Camp Butte stand as central landmarks above a landscape carved by the Mad River and its numerous tributaries. These clearings, such as Big Opening, White Oak Opening, Brays Opening, and Starvation Opening, suggest a history of specific land use or natural breaks in the dense forest canopy. The drainage network is dense, with Redwood Cr, Deer Cr, and Grouse Cr cutting through the slopes of Kinsey Ridge and Pilot Ridge. Transportation is limited to rugged routes like Berry Summit-Mad River road and the Whiting Ridge Trl, reflecting the area's primary role as a managed timber and wilderness resource.
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This is the sole edition of this map. No revisions or reprints were ever made.
1914 · Pilot Creek
USGS Topo · 1:62,500
1915 · Big Bar and Vicinity
USGS Topo · 1:250,000
1922 · Korbel
USGS Topo · 1:62,500
1922 · China Flat
USGS Topo · 1:62,500
1922 · Kneeland
USGS Topo · 1:62,500
1945 · Blue Lake
USGS Topo · 1:62,500
1950 · Iaqua Buttes
USGS Topo · 1:62,500
1951 · Pilot Creek
USGS Topo · 1:62,500
1951 · Blue Lake
USGS Topo · 1:62,500
1952 · Willow Creek
USGS Topo · 1:62,500