
The John Day River flows through this central Grant County landscape, defining a valley floor marked by early agricultural irrigation infrastructure. Diversion systems such as Eddington Ditch, Lemons Ditch, and the Blue Mountain Ditch trace the contours of the river plain, indicating a legacy of water management for local ranching and farming. To the north and south, the terrain rises sharply into the Malheur National Forest and the northern slopes of the Aldrich Mountains.
49 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.
1940 · Mount Vernon
USGS Topo · 1:62,500
1940 · Aldrich Mtn.
USGS Topo · 1:62,500
1943 · Aldrich Mtn.
USGS Topo · 1:62,500
1943 · Mount Vernon
USGS Topo · 1:62,500
1949 · Long Creek
USGS Topo · 1:62,500
1951 · Long Creek
USGS Topo · 1:62,500
1951 · Courtrock
USGS Topo · 1:62,500
1955 · Canyon City
USGS Topo · 1:250,000
1959 · Canyon City
USGS Topo · 1:250,000
1972 · Big Weasel Sprs
USGS Topo · 1:24,000