
Chemehuevi Valley opens the northern landscape of this 1980s provisional survey, giving way to the complex peaks and canyons of the Turtle Mountains. This arid region of San Bernardino County is marked by a network of primitive tracks labeled as 4wd, indicating the remote nature of the terrain during this era. Evidence of mineral exploration is widespread, with numerous locations simply marked as Prospect or Prospects scattered across the mountain slopes and valley floor.
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This is the sole edition of this map. No revisions or reprints were ever made.
1903 · Needles
USGS Topo · 1:125,000
1904 · Needles Special
USGS Topo · 1:125,000
1943 · Center Hills
USGS Topo · 1:62,500
1943 · Turtle Mts.
USGS Topo · 1:62,500
1950 · Sawtooth Range
USGS Topo · 1:62,500
1950 · Savahia Peak
USGS Topo · 1:62,500
1951 · Savahia Peak
USGS Topo · 1:62,500
1951 · Sawtooth Range
USGS Topo · 1:62,500
1954 · Needles
USGS Topo · 1:250,000
1954 · Turtle Mountains
USGS Topo · 1:62,500