
Siskiyou Divide forms a prominent ridgeline across this section of the Cascade-Siskiyou region, marking the boundary between Jackson County, Oregon, and Siskiyou County, California. The landscape is defined by significant elevations, including Wagner Butte and Siskiyou Peak, which anchor a complex network of drainages such as the Little Applegate River and the headwaters of Grouse Creek. High-altitude features like Wymer Glade and Monogram Lakes suggest the specialized ecology found along the Pacific Crest National Scenic Trail, which traverses the central peaks.
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This is the sole edition of this map. No revisions or reprints were ever made.
1886 · Shasta
USGS Topo · 1:250,000
1891 · Ashland
USGS Topo · 1:250,000
1893 · Ashland
USGS Topo · 1:250,000
1894 · Shasta
USGS Topo · 1:250,000
1897 · Ashland
USGS Topo · 1:250,000
1932 · Yreka
USGS Topo · 1:96,000
1938 · Medford
USGS Topo · 1:125,000
1939 · Yreka
USGS Topo · 1:125,000
1948 · Weed
USGS Topo · 1:250,000
1950 · Weed
USGS Topo · 1:250,000