
The Calapooya Mountains divide this landscape, marking the high-altitude boundary between the Umpqua National Forest and Willamette National Forest. This 1997 revision of the 1980 topography reveals a rugged terrain defined by industrial history and primitive wilderness access. Evidence of the region's mining heritage is clear through the presence of the Noonday Mine near Helena Saddle and the Mayflower Mine further south. These sites, coupled with numerous unnamed quarries, suggest a landscape shaped by resource extraction and logging roads.
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This is the sole edition of this map. No revisions or reprints were ever made.
1917 · Diamond Lake
USGS Topo · 1:125,000
1925 · Waldo Lake
USGS Topo · 1:125,000
1935 · Lowell
USGS Topo · 1:96,000
1942 · Lowell
USGS Topo · 1:125,000
1955 · Illahee Rock
USGS Topo · 1:62,500
1955 · Fairview Peak
USGS Topo · 1:62,500
1956 · Toketee Falls
USGS Topo · 1:62,500
1956 · Oakridge
USGS Topo · 1:62,500
1958 · Roseburg
USGS Topo · 1:250,000
1959 · Roseburg
USGS Topo · 1:250,000