2018 Map of Big Sage Reservoir
USGS Topo · Published 2018About this map
Modoc National Forest encompasses the high volcanic plateaus and basins shown here, dominated by the expansive Big Sage Reservoir in the northeast. This 2018 survey reveals a landscape shaped by water management and high-altitude terrain, featuring a series of smaller impoundments including Upper Cummings Reservoir, Kelley Reservoir, and Essex Reservoir. The topography is defined by the sharp rise of Whittemore Ridge and Porcupine Rim, overlooking the broad, flat basins of Round Valley and Crowder Flat.
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Map Details
Editions of this 2018 Big Sage Reservoir Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1886 · Alturas
USGS Topo · 1:250,000
1892 · Alturas
USGS Topo · 1:250,000
1954 · Alturas
USGS Topo · 1:250,000
1958 · Alturas
USGS Topo · 1:250,000
1961 · Canby
USGS Topo · 1:62,500
1961 · Alturas
USGS Topo · 1:62,500
1962 · Alturas
USGS Topo · 1:250,000
1962 · Big Sage Reservoir
USGS Topo · 1:62,500
1962 · Jacks Butte
USGS Topo · 1:62,500
1965 · Alturas
USGS Topo · 1:250,000