
Antelope Flat and Frank Maher Flat dominate this high-desert plateau in Malheur County, where water management is the primary signature on the landscape. This 2014 survey reveals a complex network of reservoirs and diversions essential for ranching and agriculture, including the substantial Antelope Reservoir in the north and the specialized Parsnip Cr Diversion Reservoir to the southeast. The terrain is defined by basaltic rises such as Juniper Ridge and Castro Ridge, which overlook a drainage system composed of Willow Cr, Jack Cr, and Soldier Cr. Human presence is marked by isolated water sources like Castro Spg and Twin Springs, alongside localized infrastructure such as the Antelope Canal Rd and Arritola Place Rd. The map provides an exacting look at the modern land use patterns in this corner of Oregon, where the distribution of water at sites like Black Butte Reservoir dictates the geography of the high range.
30 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.
1955 · Jordan Valley
USGS Topo · 1:250,000
1957 · Jordan Valley
USGS Topo · 1:250,000
1958 · Jordan Valley
USGS Topo · 1:250,000
1969 · Little Grassy Mountain
USGS Topo · 1:24,000
1969 · Juniper Ridge
USGS Topo · 1:24,000
1969 · Antelope Reservoir
USGS Topo · 1:24,000
1969 · Jordan Valley
USGS Topo · 1:24,000
1969 · Danner
USGS Topo · 1:24,000
1980 · Skull Creek
USGS Topo · 1:24,000
1980 · Juniper Point
USGS Topo · 1:24,000