Buffalo Gap National Grassland and Oglala National Grassland dominate this section of the High Plains, where the state line divides Fall River County, South Dakota, from Sioux County, Nebraska. This 2015 survey reveals a landscape shaped by intricate drainage systems, notably the many forks of Alkali Cr and the winding course of Indian Cr. The eponymous Wallace Ranch sits near the southern edge of the sheet, serving as a primary human landmark in a region otherwise defined by its topography.
23 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
1954 · Torrington
USGS Topo · 1:250,000
1955 · Hot Springs
USGS Topo · 1:250,000
1955 · Newcastle
USGS Topo · 1:250,000
1955 · Alliance
USGS Topo · 1:250,000
1957 · Alliance
USGS Topo · 1:250,000
1958 · Torrington
USGS Topo · 1:250,000
1958 · Alliance
USGS Topo · 1:250,000
1958 · Newcastle
USGS Topo · 1:250,000
1978 · Coffee Flats
USGS Topo · 1:24,000