Robinson Flats dominates the central portion of this Custer County landscape, characterized by the scattered agricultural operations typical of South Dakota's semi-arid rangelands. The 2012 survey illustrates a network of rural homesteads including the Johnson Ranch, Robinson Ranch, Hay Ranch, and Fay Ranch, each strategically positioned near water sources or along the section lines. The drainage patterns are defined by the Hawkwright Cr and its eastern and western forks, which carve through the high ground. To the south and west, the terrain becomes more broken, leading into geological features like Coal Canyon and Craven Canyon. The transport network relies on gravel and unimproved roads such as Pilger and Barker Dome Rd, reflecting the remote and agrarian nature of the district.
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1896 · Harney Peak
USGS Topo · 1:125,000
1901 · Harney Peak
USGS Topo · 1:125,000
1902 · Edgemont
USGS Topo · 1:125,000
1950 · Edgemont
USGS Topo · 1:24,000
1950 · Edgemont SW
USGS Topo · 1:24,000
1950 · Burdock
USGS Topo · 1:24,000
1950 · Edgemont NE
USGS Topo · 1:24,000
1950 · Minnekahta
USGS Topo · 1:24,000
1950 · Flint Hill
USGS Topo · 1:24,000
1954 · Jewel Cave SE
USGS Topo · 1:24,000