
Lake Mountain serves as the central anchor for this mountainous region of Trinity County, where the topography is defined by the high ridges of Haman Ridge and the Fenton Ridge. Private holdings like Jamison Ranch and Lampley Ranch are scattered throughout the Six Rivers National Forest, indicating a long-standing history of ranching and remote settlement. The landscape is characterized by its hydrological complexity, featuring numerous unnamed Springs and named catchments like Turtle Lake and Lost Lake. Traces of small-scale industry appear at the Prospect Mines, while the presence of the Lake Mountain Landing Strip and Frazier Gardens suggests localized infrastructure and subsistence in this high-elevation terrain. To the west, the river system cuts deeply, notably at Island Mountain, while high points such as Pilot Peak and Horse Ranch Peak provide prominent landmarks across the quadrangle.
41 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.
1920 · Cummings
USGS Topo · 1:62,500
1920 · Covelo
USGS Topo · 1:62,500
1920 · Harris
USGS Topo · 1:62,500
1921 · Hoaglin
USGS Topo · 1:62,500
1922 · Island Mountain
USGS Topo · 1:62,500
1931 · Hoaglin
USGS Topo · 1:96,000
1935 · Hoaglin
USGS Topo · 1:125,000
1949 · Alderpoint
USGS Topo · 1:62,500
1951 · Alderpoint
USGS Topo · 1:62,500
1952 · Spyrock
USGS Topo · 1:62,500