
Modoc National Forest and Klamath National Forest converge in this high-altitude landscape of northern California, where volcanic geology and timber transport define the terrain. The presence of an Old Railroad Grade winding through the forest blocks suggests the area's legacy of logging, providing a clear route for researchers tracing historic industrial paths. High peaks and passes like Bonita Butte, Three Sisters, and Six Shooter Pass dominate the topography, interspersed with essential water sources such as Antelope Well and Duck Well. Industrial activity is further evidenced by a Cinder Pit and Borrow Pit, while the eastern portion of the map is marked by a prominent Lava Flow, illustrating the region's recent volcanic history near the intersection of Siskiyou and Modoc counties.
18 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1886 · Modoc Lava Bed
USGS Topo · 1:250,000
1892 · Modoc Lava-Bed
USGS Topo · 1:250,000
1950 · Mt. Dome
USGS Topo · 1:62,500
1950 · Bray
USGS Topo · 1:62,500
1950 · Dorris
USGS Topo · 1:62,500
1952 · Medicine Lake
USGS Topo · 1:62,500
1954 · Alturas
USGS Topo · 1:250,000
1958 · Alturas
USGS Topo · 1:250,000
1962 · Alturas
USGS Topo · 1:250,000
1965 · Alturas
USGS Topo · 1:250,000