Crossing the volcano of time
Subtitle: Yellowstone's living adventure
By: by Paul F. Geerlings.
Publisher: Grand Canyon Publications
Published: 1982
Place of publication: Salt Lake City, Utah
Language: eng
Number of pages: 119
Subjects: Natural history -- Yellowstone National Park.; Natural history -- Wyoming -- Grand Teton National Park.; Yellowstone National Park.; Grand Teton National Park (Wyo.)
Notes: Cover title.