
Twickenham sits along the northern reach of this Wheeler County landscape, where the John Day Wild and Scenic River carves through high desert terrain. The river is the primary geographic artery, joined by smaller drainages like Girds Cr and James Canyon. The southern portion of the map is dominated by the geological preserves of the John Day Fossil Beds National Monument, reflecting the area's significance for paleontological research.
23 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.
1926 · Mitchell
USGS Topo · 1:125,000
1955 · Bend
USGS Topo · 1:250,000
1957 · Bend
USGS Topo · 1:250,000
1958 · Bend
USGS Topo · 1:250,000
1966 · Mitchell
USGS Topo · 1:62,500
1966 · Kinzua
USGS Topo · 1:62,500
1966 · Clarno
USGS Topo · 1:62,500
1968 · Painted Hills
USGS Topo · 1:24,000
1968 · Lawson Mtn
USGS Topo · 1:24,000
1981 · Stephenson Mountain
USGS Topo · 1:100,000