
Modoc National Forest and Klamath National Forest converge in this high-altitude landscape dominated by volcanic features and historic transport routes. The prominent volcanic peak of Bonita Butte stands near the northern boundary, while the extensive Callahan Flow marks the eastern terrain. This 2021 survey preserves the trace of legacy infrastructure, most notably the Lower Rr Grade Trl and Rr Grade Trl, which follow the winding paths of former timber or industrial rail lines through the mountains.
19 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