
Willamette National Forest dominates this landscape in Linn and Marion counties, where the high drainage basins of the western Cascades converge. The terrain is defined by prominent peaks like Monument Peak and the rocky outcrops of the Palisades, which stand as landmarks above a dense network of mountain streams. To the northeast, the North Santiam River cuts through the topography, followed closely by Sardine Rd as it winds along the river corridor. This survey illustrates the intricate watershed systems of Lawhead Creek and Thomas Creek, showing the relationship between steep elevation and the primary timber-access routes like Seven Mile Rd and Green Mountain Rd. The presence of a Locked Gate on the interior forest roads highlights the managed nature of this modern wilderness, providing a clear record of land access and forest boundaries during the 2020s.
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This is the sole edition of this map. No revisions or reprints were ever made.
1929 · Mill City
USGS Topo · 1:125,000
1953 · Salem
USGS Topo · 1:250,000
1954 · Salem
USGS Topo · 1:250,000
1955 · Mill City
USGS Topo · 1:62,500
1956 · Quartzville
USGS Topo · 1:62,500
1956 · Battle Ax
USGS Topo · 1:62,500
1956 · Detroit
USGS Topo · 1:62,500
1960 · Salem
USGS Topo · 1:250,000
1962 · Salem
USGS Topo · 1:250,000
1963 · Salem
USGS Topo · 1:250,000