
Clarks Valley Ranch and Red Rock Ranch anchor this landscape of the high California plateau, where the northern reaches of the Modoc National Forest meet the sagebrush and springs of Lassen County. Surveyed in the early 1960s, the terrain is defined by isolated outposts like Evans Place and Hornback Ranch, connected only by a network of jeep trails and the unpaved Clarks Valley Road. The map documents a fragile water system essential for cattle and wildlife, from the namesake Boot Lake and Red Rock Lake to numerous unnamed springs and the seasonal flows of Selic Creek. Dramatic topographic features such as Red Rock Mountain and the deep cuts of Alaska Canyon provide natural barriers in this high-elevation basin, while Windy Flat suggests the exposed character of the open range.
58 named features on this map. Tap any name to fly to it.
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6 editions found
1886 · Alturas
USGS Topo · 1:250,000
1886 · Honey Lake
USGS Topo · 1:250,000
1891 · Honey Lake
USGS Topo · 1:250,000
1892 · Alturas
USGS Topo · 1:250,000
1893 · Honey Lake
USGS Topo · 1:250,000
1954 · Observation Peak
USGS Topo · 1:62,500
1954 · Ravendale
USGS Topo · 1:62,500
1954 · Alturas
USGS Topo · 1:250,000
1955 · Westwood
USGS Topo · 1:250,000
1958 · Alturas
USGS Topo · 1:250,000