
Calapooya Divide serves as a prominent geographic spine in this region of the Pacific Northwest, marking the boundary where the drainage basins of the Willamette and Umpqua rivers diverge. The high-elevation terrain is defined by a network of peaks and ridges, including Burnt Mtn, Marion Butte, and the striking Pilot Rock. This landscape is heavily shaped by its hydrology, with numerous seasonal and perennial sources such as Huckleberry Spring and Twin Cedars Spring Sp feeding into named waterways like Mosby Cr and Big River.
61 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.
1897 · Roseburg
USGS Topo · 1:125,000
1900 · Roseburg
USGS Topo · 1:125,000
1935 · Lowell
USGS Topo · 1:96,000
1942 · Lowell
USGS Topo · 1:125,000
1954 · Anlauf
USGS Topo · 1:62,500
1954 · Glide
USGS Topo · 1:62,500
1955 · Mace Mtn
USGS Topo · 1:62,500
1955 · Culp Creek
USGS Topo · 1:62,500
1958 · Roseburg
USGS Topo · 1:250,000
1959 · Roseburg
USGS Topo · 1:250,000