Title: Twelfth annual report of the United States geological and geographical survey of the territories : a report of progress of the exploration in Wyoming and Idaho for the year 1878. In two parts.
Authors: Hayden, F. V. 1829-1887.
Publisher: Govt. print. off.,
Year: 1883
Subjects: Geology Wyoming; Geology Idaho; Paleontology Wyoming; Paleontology Idaho.; Zoology Wyoming.; Zoology Idaho.; Geology Yellowstone National Park.; Paleontology Yellowstone National Park.; Zoology Yellowstone National Park.
Contents: 1. Part I--Geology, Paleontology, and Zoology.--2. Part II. Yellowstone National Park. Geology-Thermal Springs-Topography.