Thunder Basin National Grassland dominates this portion of the Powder River Basin in Converse County, where the topography is defined by ephemeral drainage patterns. The landscape is carved by several distinct watercourses, including Ireton Draw, Reeves Draw, and Mikes Draw, which channel seasonal runoff through the arid terrain toward Dry Cr. This 2015 survey illustrates a sparsely settled area where human activity is primarily represented by a network of ranch and section roads such as Esau Rd and Cr-60. The map's detailed contour lines reveal the complex interplay of ridges and depressions that characterize this grazing land, providing a clear view of the natural landforms before any further modern development. Genealogists and land historians can use the precise Public Land Survey System boundaries, including t38n r70w, to pinpoint specific parcels within this vast expanse of public and private land.
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This is the sole edition of this map. No revisions or reprints were ever made.
1955 · Newcastle
USGS Topo · 1:250,000
1958 · Newcastle
USGS Topo · 1:250,000
1959 · Bill
USGS Topo · 1:62,500
1959 · Betty Reservoir
USGS Topo · 1:62,500
1970 · Bill 4 SE
USGS Topo · 1:24,000
1970 · Bill 4 NW
USGS Topo · 1:24,000
1970 · Bill 4 SW
USGS Topo · 1:24,000
1970 · Bill 4 NE
USGS Topo · 1:24,000
1971 · Esau Spring
USGS Topo · 1:24,000
1971 · Tin Can Lake
USGS Topo · 1:24,000