
Thirtymile Creek winds through the southern portion of this high-plateau landscape in Gilliam County, anchoring a complex system of drainage and relief. The terrain is defined by a dense network of named draws and canyons, including Schott Canyon and Ferry Canyon, which cut through prominent landforms like Stebins Ridge and Shoestring Ridge. This topography suggests a landscape shaped by historical grazing and seasonal water management, where access is dictated by the deeply incised physical geography.
35 named features on this map. Tap any name to fly to it.
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2 editions found
1916 · Condon
USGS Topo · 1:125,000
1953 · The Dalles
USGS Topo · 1:250,000
1956 · The Dalles
USGS Topo · 1:250,000
1957 · The Dalles
USGS Topo · 1:250,000
1970 · Igo Butte
USGS Topo · 1:24,000
1970 · Schott Canyon
USGS Topo · 1:24,000
1970 · Chimney Springs
USGS Topo · 1:24,000
1970 · Condon
USGS Topo · 1:24,000
1970 · Buckhorn Canyon
USGS Topo · 1:24,000
1970 · Fossil North
USGS Topo · 1:24,000