This nearly complete set contains eight maps and one panoramic view (missing only #10, Parts of Western Wyoming, Southeastern Idaho and Northeastern Utah). The front cover pastedown lists 6 maps and 1 panorama. The 2 additional maps (of 3) are numbered 8 and 9 in the upper right corner, as are the first seven, which suggests the paper label is inaccurate and that all of the maps were intended to be issued in this fashion. The first six maps have brilliant lithographed color. The maps cover the region of Yellowstone, and parts of Wyoming, Idaho and Utah. All fold into original hardbound covers with gilt titling. An uncommon set rarely seen together.

A. Economic Map of Portions of Wyoming, Idaho and Utah, April 1879, (36 x 20.5").
B. Geological Map of Portions of Wyoming, Idaho and Utah, (36.2 x 20.4").
C. Part of Central Wyoming, (33.3 x 22.8").
D. Parts of Western Wyoming and Southeastern Idaho, (32.6 x 22.7").
E. Parts of Western Wyoming, Southeastern Idaho and Northeastern Utah, (33.2 x 22.8").
F. Preliminary Geological Map of the Yellowstone National Park, (28.4 x 31.9").
G. Panoramic Views - Glacial Lake and Morains; The Glaciers of Fremont's Peak; The Teton Range from Upper Grosventre Butte, (34.9 x 23.3").
H. Part of Central Wyoming, black & white (33.2 x 22.7").
I. Parts of Western Wyoming, and Southeastern Idaho, black & white (32.6 x 22.6").

References:

Condition: B

Maps are generally good with light toning and numerous fold separations as is commonly seen on these maps. In addition to the separations, the map of Central Wyoming ("H" above) has several tiny chips along one fold, and the map of Western Wyoming ("I" above) has a 2.5" edge tear at top. There is a "discarded" stamp on the front pastedown and verso of the first map. The front hinge is starting and the covers have average wear. Original string ties are missing.