
Marion Forks serves as the primary human settlement in this high-altitude landscape, situated where the North Santiam River meets multiple descending mountain creeks. The 2011 survey reveals an intricate network of forest access routes like Bingham Ridge RD and Big Meadows RD, which facilitate entry into a terrain defined by dramatic verticality and water features. Prominent landmarks such as Independence Rock and the elevations of Marion Mountain and Turpentine Peak surround a dense collection of alpine basins. These basins contain numerous named bodies of water, including Cleo Lake, Temple Lake, and Pinet Lake. Near Marion Flats, the presence of Camp Pioneer underscores the area's use for recreation and youth programs. The drainage systems are marked by significant cascades, specifically Gooch Falls, Gatch Falls, and Marion Falls, illustrating the steep descent of the local hydrology toward the river valley.
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This is the sole edition of this map. No revisions or reprints were ever made.
1927 · Mt. Jefferson
USGS Topo · 1:125,000
1929 · Mill City
USGS Topo · 1:125,000
1929 · Three Sisters
USGS Topo · 1:125,000
1930 · Mt. Jefferson
USGS Topo · 1:125,000
1932 · Three Sisters
USGS Topo · 1:125,000
1934 · Mc Kenzie Bridge
USGS Topo · 1:96,000
1940 · Mc Kenzie Bridge
USGS Topo · 1:125,000
1953 · Salem
USGS Topo · 1:250,000
1954 · Salem
USGS Topo · 1:250,000
1955 · Echo Mountain
USGS Topo · 1:62,500