
Simnasho serves as the focal point of this high-plateau landscape, where the Simnasho-Hot Springs Rd intersects with local routes like Asnamash Loop. The terrain is defined by dramatic elevation changes, moving from the heights of Simnasho Butte and the Mutton Mountains down to the broad expanses of Schoolie Flat and The Island. Water is a critical element in this environment, managed through the Happy Valley Reservoir and supplied by natural sources like Le Clair Spring.
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This is the sole edition of this map. No revisions or reprints were ever made.
1928 · Madras
USGS Topo · 1:125,000
1930 · Dufur
USGS Topo · 1:125,000
1931 · Madras
USGS Topo · 1:125,000
1934 · Dufur
USGS Topo · 1:125,000
1953 · The Dalles
USGS Topo · 1:250,000
1955 · Bend
USGS Topo · 1:250,000
1956 · The Dalles
USGS Topo · 1:250,000
1957 · Bend
USGS Topo · 1:250,000
1957 · The Dalles
USGS Topo · 1:250,000
1958 · Bend
USGS Topo · 1:250,000