
The irrigation infrastructure of Grant County's agricultural heartland is the primary focus of this mid-1960s survey. The landscape is defined by the W 20 Canal and a series of technical water-management features, including a prominent Aqueduct and a Siphon near the center of the sheet. These systems, managed by the U.S. Bureau of Reclamation, were critical to transforming the arid terrain into productive farmland. Settlement patterns follow the grid of established routes like Dodson Road and White Trail Road. Local community life is anchored at the Grange Hall, while industrial and utility sites such as a Pumping Station, a Radio Tower, and various Borrow Pits and a Gravel Pit indicate the ongoing development of the area's physical and communication networks during this period.
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This is the sole edition of this map. No revisions or reprints were ever made.
1910 · Winchester
USGS Topo · 1:62,500
1912 · Moses Lake
USGS Topo · 1:62,500
1953 · Ritzville
USGS Topo · 1:250,000
1956 · Ephrata
USGS Topo · 1:62,500
1956 · Ephrata
USGS Topo · 1:24,000
1956 · Ephrata SW
USGS Topo · 1:24,000
1956 · Grant Orchards
USGS Topo · 1:24,000
1956 · Mae
USGS Topo · 1:24,000
1956 · Winchester SE
USGS Topo · 1:24,000
1956 · Winchester NE
USGS Topo · 1:24,000