Oglala National Grassland dominates this high plains landscape in northern Sioux County, defined by a network of intermittent drainages and ranching-related water management. The terrain is marked by seasonal flows such as Indian Cr and Antelope Cr, which are punctuated by numerous small reservoirs named for local families and landmarks. The prevalence of features like Henry Reservoir Number 1, Merlin Mader Reservoir Number 1, and Jordan Reservoir illustrates the critical role of water storage in this arid livestock-raising region. Transportation is limited to a few arterial gravel routes, including Edgemont Rd and Montrose Rd, which cross the sparse topography. The map provides a clear look at the land use patterns and water engineering required to sustain agriculture within the national grassland boundaries during the early 21st century.
20 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.
1902 · Edgemont
USGS Topo · 1:125,000
1955 · Hot Springs
USGS Topo · 1:250,000
1955 · Alliance
USGS Topo · 1:250,000
1957 · Alliance
USGS Topo · 1:250,000
1958 · Alliance
USGS Topo · 1:250,000
1980 · Montrose
USGS Topo · 1:24,000
1980 · Story
USGS Topo · 1:24,000
1980 · Five Points
USGS Topo · 1:24,000
1980 · Story NE
USGS Topo · 1:24,000
1980 · Warbonnet Ranch
USGS Topo · 1:24,000