Fossil forests of the Yellowstone National Park.
Contributors: United States. National park service.
Publisher: Govt. print. off.
Published: 1921
Place of publication: Washington
Language: eng
Number of pages: 30
Subjects: Petrified forests -- Yellowstone National Park.; Trees, Fossil -- Yellowstone National Park.
Notes: At head of title: Department of the interior. Albert B. Fall, secretary. National park service. Stephen T. Mather, director.
"Publications on Yellowstone national park": p. 30.