
Ochoco National Forest dominates this high-elevation landscape where the boundaries of Grant, Crook, and Harney counties converge. The terrain is defined by a complex network of seasonal drainages and named water sources, including Silver Creek, Grindstone Creek, and Twelvemile Creek. Higher elevations like Iron Mtn overlook a series of vital springs that likely served as essential landmarks for early ranching and forestry operations, such as Jimmy McCuen Spring, Sherman Spring, and Robertson Spring. The layout of Mills Ranch Rd and Price-Twelvemile Rd highlights the remote nature of this timber and grazing country. Notable geographic features like Long Walk Island and the intersection of multiple creek systems suggest a landscape shaped by narrow valleys and persistent water access in an otherwise arid region of the state.
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This is the sole edition of this map. No revisions or reprints were ever made.
1932 · Dayville
USGS Topo · 1:125,000
1936 · Dayville
USGS Topo · 1:125,000
1955 · Burns
USGS Topo · 1:250,000
1955 · Canyon City
USGS Topo · 1:250,000
1958 · Burns
USGS Topo · 1:250,000
1959 · Burns
USGS Topo · 1:250,000
1959 · Canyon City
USGS Topo · 1:250,000
1961 · Delintment Lake
USGS Topo · 1:62,500
1981 · Suplee
USGS Topo · 1:24,000
1981 · Dayville
USGS Topo · 1:100,000