Pony Express Pony Express National Historic Trail /
|Main Author:||United States. National Park Service.|
|Other Authors:||United States. Forest Service.|
[Washington, D.C.] :
U.S. Dept. of the Interior, National Park Service : For sale by the Supt. of Docs., U.S. G.P.O.,
1 folded sheet : color illustrations, 1 color map ; 21 x 109 cm folded to 21 x 10 cm.