
Brogan serves as the primary settlement on this eastern Oregon landscape, situated at the edge of the Willow Creek Valley. The terrain is defined by a network of drainage systems and irrigation infrastructure, including the Cole Ditch, Low Line Ditch, and East Side Ditch, which redirect water through the arid basins. To the west, Edwards Butte rises as a prominent landmark above the surrounding creek beds and gulches. The importance of water management in this high-desert environment is evident in the presence of Pole Creek Reservoir and Davis Reservoir, alongside numerous family-named or local springs such as Three Boswell Spring and Worthington Spring. Historical transportation routes like Mormon Basin Cutoff Rd and Huntington Rd traverse the undulating hills, connecting this ranching and farming pocket of Malheur County to the broader region.
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This is the sole edition of this map. No revisions or reprints were ever made.
1950 · Jamieson
USGS Topo · 1:62,500
1951 · Huntington
USGS Topo · 1:62,500
1955 · Baker
USGS Topo · 1:250,000
1959 · Baker
USGS Topo · 1:250,000
1964 · Bridgeport
USGS Topo · 1:62,500
1964 · Brogan
USGS Topo · 1:62,500
1980 · Brogan
USGS Topo · 1:100,000
1988 · Birch Creek Meadow
USGS Topo · 1:24,000
1988 · Rye Valley
USGS Topo · 1:24,000
1988 · Jamieson
USGS Topo · 1:24,000