
Shasta-Trinity National Forests dominate this Siskiyou County landscape, revealing a topography defined by volcanic features and high-elevation water sources. The map highlights the administrative and recreational heart of the area at the Harris Spring Guard Station and the adjacent Harris Spring Campground. This 1998 revision, based on earlier topographic data, traces the complex terrain from the heights of Horse Peak and Asperin Butte down to the unusual hydrology of Dry Lake and Toad Lake. Resource extraction and land management are evident through markers like the Cinder Pit, Quarry, and various Gravel Pits, which provided materials for the Forest Service road network. The inclusion of the Modoc Volcanic Scenic Byway reflects the transition of this timber and volcanic landscape into a corridor for modern recreational travel.
28 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
1932 · Bartle
USGS Topo · 1:96,000
1939 · Bartle
USGS Topo · 1:125,000
1950 · Bray
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
1961 · Hambone
USGS Topo · 1:62,500
1961 · Bartle
USGS Topo · 1:62,500