
Clear Lake Reservoir dominates this landscape in northern California, where the high desert meets the protected waters of the Clear Lake National Wildlife Refuge. The map details a complex hydrological and management boundary where the Modoc National Forest adjoins the refuge lands. To the west, the Clear Lake Hills rise above the water, while the prominent peak of Double Head Mountain stands as a landmark to the south. Small interior features like Bird Island and a lakeside Corral suggest the region's importance for both migratory birds and historical ranching activities. The survey includes technical water management data, specifically noting a Dike and a spillway elevation of 4480 feet, reflecting the reservoir's role in the regional irrigation and conservation infrastructure of the 1990s.
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
1951 · Clear Lake Reservoir
USGS Topo · 1:62,500
1951 · Tulelake
USGS Topo · 1:62,500
1952 · Timber Mountain
USGS Topo · 1:62,500
1952 · Hackamore
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