Frenchman Hills dominates the central landscape of this Grant County region, serving as a prominent geographical divide between the Royal Slope to the south and the water management systems to the north. In the early 21st century, this area remains defined by its complex irrigation and drainage infrastructure, including the Frenchman Hills Wasteway and the southern edge of the Potholes Reservoir.
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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
1911 · Red Rock
USGS Topo · 1:62,500
1912 · Moses Lake
USGS Topo · 1:62,500
1923 · Corfu
USGS Topo · 1:62,500
1950 · Smyrna
USGS Topo · 1:62,500
1951 · Smyrna
USGS Topo · 1:62,500
1951 · Corfu
USGS Topo · 1:62,500
1953 · Walla Walla
USGS Topo · 1:250,000
1953 · Ritzville
USGS Topo · 1:250,000
1956 · Moses Lake South
USGS Topo · 1:24,000