
Unity Reservoir serves as a central hydrological point in this Baker County landscape, where the Middle Fork Burnt River and several drainage systems converge. The area is characterized by an extensive network of irrigation infrastructure, including the Big Flat Ditch, Thompson Ditch, and China Cr Ditch, reflecting the region's managed water resources for high-altitude grazing and agriculture. Small settlements like Big Flat and Head Meadow appear alongside the historical Big Flat Cem, providing specific points of interest for genealogists tracing early families in the Burnt River valley.
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This is the sole edition of this map. No revisions or reprints were ever made.
1901 · Sumpter
USGS Topo · 1:125,000
1908 · Ironside Mountain
USGS Topo · 1:125,000
1955 · Canyon City
USGS Topo · 1:250,000
1959 · Canyon City
USGS Topo · 1:250,000
1961 · Whitney
USGS Topo · 1:24,000
1972 · Hereford
USGS Topo · 1:24,000
1972 · Unity
USGS Topo · 1:24,000
1972 · Phillips Lake
USGS Topo · 1:24,000
1972 · Sumpter
USGS Topo · 1:24,000
1972 · Beaverdam Creek
USGS Topo · 1:24,000