7 local route maps, map of "Black Hills region, South Dakota," ill., and text on verso. Conoco logo at head of title. In lower left: 336-J.C. 10-P. Indexed. Relief shown by hachures and spot heights.
Extent
1 map : col. ; 38 x 58 cm., folded to 24 x 11 cm.
Extent of Digitization
This object has been completely digitized.
Scale
Scale [ca. 1:1,140,480]. 1 in. = approx. 18 miles.
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