
The volcanic topography of Diamond Craters and extensive lava flows dominate the northwestern corner of this 1967 survey, providing a sharp contrast to the fertile marshlands below. The Diamond Valley floor is defined by a network of water management features, including the Diamond Canal and several creeks such as Kiger Creek and Cucamonga Creek that feed into the Diamond Swamp. This area was part of the Malheur Nat Wildlife Refuge, indicating its significance as a protected habitat.
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This is the sole edition of this map. No revisions or reprints were ever made.
1955 · Burns
USGS Topo · 1:250,000
1955 · Adel
USGS Topo · 1:250,000
1957 · Adel
USGS Topo · 1:250,000
1958 · Burns
USGS Topo · 1:250,000
1958 · Adel
USGS Topo · 1:250,000
1959 · Burns
USGS Topo · 1:250,000
1962 · Adel
USGS Topo · 1:250,000
1967 · Happy Valley
USGS Topo · 1:24,000
1967 · Krumbo Reservoir
USGS Topo · 1:24,000
1967 · Jackass Butte NE
USGS Topo · 1:24,000