Fossil forests of the Yellowstone National Park.
Contributors: United States. National Park Service.
Publisher: Govt. Print. Off.]
Published: 1928
Place of publication: [Washington
Language: eng
Number of pages: 30
Subjects: Petrified forests.; Paleobotany -- Yellowstone National Park.
Notes: "By F. H. Knowlton, United States Geological Survey."--p.3.
Cover title.
At head of title: United States Department of the Interior. Hubert Work, secretary. National Park Service. Stephen T. Mather, director.
"The national parks at a glance": p.2.
"Publications on Yellowstone National Park": p.30.