Hayfork Summit stands as the central topographic landmark in this high-altitude section of Trinity County, where the boundaries of the Shasta National Forest and Trinity National Forest meet. The landscape is defined by the Hayfork Divide, a significant ridgeline that separates various drainage basins. Numerous gulches, such as Garden Gulch, Bridge Gulch, and Carrier Gulch, carve through the terrain, indicating a complex network of seasonal and perennial water flow into larger arteries like Hayfork Cr and Carr Cr.
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1890 · Red Bluff
USGS Topo · 1:250,000
1894 · Red Bluff
USGS Topo · 1:250,000
1909 · Big Bar
USGS Topo · 1:96,000
1913 · Weaverville
USGS Topo · 1:125,000
1915 · Big Bar and Vicinity
USGS Topo · 1:250,000
1931 · Hoaglin
USGS Topo · 1:96,000
1935 · Hoaglin
USGS Topo · 1:125,000
1950 · Weaverville
USGS Topo · 1:62,500
1951 · Hayfork
USGS Topo · 1:62,500
1951 · Chanchelulla Peak
USGS Topo · 1:62,500