
Boyd Spring sits at the edge of the high desert terrain within the northeastern reach of Surprise Valley in Modoc County. This region is defined by a sparse but essential network of water resources, where natural drainages like First Cr, Second Cr, and Sand Cr feed into seasonal catchments. The topographic data reveals a landscape managed for water storage, featuring Hatch Reservoir, Level Reservoir, and Boggs Reservoir. To the northeast, Lieberman Canyon cuts through the rising elevation, while Mud Lake occupies a central depression. The infrastructure is minimal, centered on rural routes such as Co RD 15 and Co RD 15a, reflecting a remote area primarily shaped by the needs of range management and high-plateau hydrology.
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This is the sole edition of this map. No revisions or reprints were ever made.
1886 · Alturas
USGS Topo · 1:250,000
1889 · Long Valley
USGS Topo · 1:250,000
1892 · Alturas
USGS Topo · 1:250,000
1954 · Vya
USGS Topo · 1:250,000
1954 · Alturas
USGS Topo · 1:250,000
1958 · Alturas
USGS Topo · 1:250,000
1958 · Vya
USGS Topo · 1:250,000
1962 · Alturas
USGS Topo · 1:250,000
1962 · Vya
USGS Topo · 1:250,000
1962 · Cedarville
USGS Topo · 1:62,500