
Brogan sits at the junction of water and transit in this high-desert landscape of Malheur County. The settlement is positioned where the John Day Hwy meets a complex network of irrigation infrastructure, including the Cole Ditch, Low Line Ditch, and E Side Ditch. This system of gravity-fed water management is essential for the Willow Creek Valley, supporting local agriculture by drawing from sources like the Pole Cr Reservoir.
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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