The Sacramento River carves a deep path through the western edge of the Shasta National Forest, defining the region's transport and settlement corridors. Small hamlets like Conant, Sims, and Sims Flat are clustered tightly along the river valley, where narrow strips of development follow the winding path of Conant Rd and the parallel rail corridor. This rugged mountain landscape is dominated by high ridges and peaks, most notably Tombstone Mountain in the east and the prominent Sweetbrier Ridge and Mears Ridge. A dense network of drainage systems, including Hazel Cr, Sweetbrier Cr, and Tom Neal Cr, feeds into the Sacramento from the surrounding heights. High-elevation landmarks like Tater Hill and Big Spring mark the interior, reachable via forestry routes like Girard Ridge Rd and the lower Hazel Creek Rd.
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1886 · Shasta
USGS Topo · 1:250,000
1890 · Red Bluff
USGS Topo · 1:250,000
1894 · Red Bluff
USGS Topo · 1:250,000
1894 · Shasta
USGS Topo · 1:250,000
1901 · Redding
USGS Topo · 1:125,000
1935 · Dunsmuir
USGS Topo · 1:125,000
1946 · Lamoine
USGS Topo · 1:62,500
1948 · Weed
USGS Topo · 1:250,000
1949 · Bollibokka Mtn
USGS Topo · 1:62,500
1950 · Weed
USGS Topo · 1:250,000