
Grass Valley serves as the primary hub of this high-plateau landscape in Sherman County, where the grid of city streets like Market St and Mill St meets a wide network of canyon systems. The geography is defined by deep incisions in the terrain, such as Grass Valley Canyon and Cottonwood Canyon, which break the agricultural tableland. For those researching local pioneers or family ties, the Michigan Cem is a notable landmark located just south of Macks Canyon. Water sources are sparse but critical in this region, represented here by Buether Reservoir and the drainage of Finnegan Cr. The map captures a transition from town life to the expansive canyonlands of Sand Hollow and Grimes Canyon, reflecting the enduring rural character of this part of the Columbia Plateau.
47 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
This is the sole edition of this map. No revisions or reprints were ever made.
1953 · The Dalles
USGS Topo · 1:250,000
1956 · The Dalles
USGS Topo · 1:250,000
1957 · The Dalles
USGS Topo · 1:250,000
1962 · Erskine
USGS Topo · 1:24,000
1962 · Summit Ridge
USGS Topo · 1:24,000
1962 · Sinamox
USGS Topo · 1:24,000
1962 · Grass Valley
USGS Topo · 1:24,000
1970 · Kent
USGS Topo · 1:24,000
1970 · Rosebush
USGS Topo · 1:24,000
1971 · Moro
USGS Topo · 1:24,000