Rye Grass Coulee and the adjacent Rye Grass Flat define the topography of this Franklin County landscape, where the land falls away into the deep drainage of McCoy Canyon. The map reveals a highly structured section-line road network typical of the Columbia Basin's agricultural development, including Haverland Koontz Rd and E Blackman Ridge Rd. This 2020 survey illustrates how modern infrastructure like the Pasco Kahlotus Road follows the natural contours of the terrain. The presence of numerous family-named routes, such as Smith Canyon Rd, Gertler Rd, and Moulton Rd, provides a valuable geographic reference for local historians tracing the distribution of land and the evolution of rural access in the region.
17 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1915 · Wallulah
USGS Topo · 1:96,000
1916 · Connell
USGS Topo · 1:125,000
1918 · Connell
USGS Topo · 1:125,000
1918 · Wallula
USGS Topo · 1:125,000
1953 · Walla Walla
USGS Topo · 1:250,000
1958 · Walla Walla
USGS Topo · 1:250,000
1963 · Rye Grass Coulee
USGS Topo · 1:24,000
1964 · Levey SW
USGS Topo · 1:24,000
1964 · Levey SE
USGS Topo · 1:24,000
1964 · Levey NE
USGS Topo · 1:24,000