
The Columbia River and Lake Wallula define the northwestern corner of this territory, where the state boundary between Washington and Oregon meets the line separating Benton and Umatilla counties. This landscape is characterized by a complex network of drainages cutting through the high plateau, including the expansive Juniper Canyon system and its north and south forks. Farther south, McCall Canyon and North Fork Cold Springs Canyon carve into the terrain, reflecting the arid geography of the region. Local transportation is facilitated by rural routes such as Wallula Rd and Hartle Rd, while the presence of Badger Springs suggests a critical water source in an otherwise dry environment. The mapping reveals a sparse settlement pattern dominated by the natural topography of these intersecting canyon systems and the broad waterway of the Columbia.
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This is the sole edition of this map. No revisions or reprints were ever made.
1908 · Umatilla
USGS Topo · 1:125,000
1915 · Wallulah
USGS Topo · 1:96,000
1917 · Pasco
USGS Topo · 1:125,000
1918 · Wallula
USGS Topo · 1:125,000
1935 · Pendleton
USGS Topo · 1:125,000
1953 · Pendleton
USGS Topo · 1:250,000
1953 · Walla Walla
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1958 · Walla Walla
USGS Topo · 1:250,000
1962 · Juniper
USGS Topo · 1:24,000