
The North Fork Malheur River carves through the heart of the Malheur National Forest, defining the hydrological character of this high-elevation landscape. Water management for livestock or forestry is central to the area's development, evidenced by a network of small reservoirs such as Skagway Reservoir, Slate Reservoir, and 69 Reservoir. The terrain is deeply incised by drainages like Tin Wagon Canyon and Rattlesnake Canyon, which feed into the primary river systems.
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This is the sole edition of this map. No revisions or reprints were ever made.
1908 · Ironside Mountain
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
1966 · Beulah
USGS Topo · 1:62,500
1968 · Drewsey
USGS Topo · 1:62,500
1970 · Flag Prairie
USGS Topo · 1:62,500
1970 · Castle Rock
USGS Topo · 1:62,500