
The South Umpqua River winds through the heart of this drainage basin within the Umpqua National Forest, defining the region's steep topography and watershed network. The landscape is marked by prominent high points such as Smith Ridge, Boulder Rock, and Hbb Knob, which overlook a complex system of tributaries including Dumont Creek and Boulder Cr. Forest management and resource access are evidenced by a dense network of development roads and spurs like Nat For Dev Rd 2813 and the Smith Ridge Rd. A notable point of human activity in this wilderness is the Zinc Cr Bridge Camp, situated where Zinc Creek meets the river. The presence of Campbell Falls further underscores the river's significant drop in elevation as it cuts through the mountains, while locations like Clayton Point provide strategic vantage points over the narrow valleys.
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1891 · Ashland
USGS Topo · 1:250,000
1893 · Ashland
USGS Topo · 1:250,000
1897 · Ashland
USGS Topo · 1:250,000
1944 · Tiller
USGS Topo · 1:62,500
1944 · Abbott Butte
USGS Topo · 1:62,500
1947 · Abbott Butte
USGS Topo · 1:62,500
1955 · Quartz Mtn
USGS Topo · 1:62,500
1955 · Red Butte
USGS Topo · 1:62,500
1955 · Medford
USGS Topo · 1:250,000
1957 · Medford
USGS Topo · 1:250,000