Discovery and exploration of the Oregon caves
Subtitle: Oregon Caves National Monument
By: by Frank K. Walsh and William R. Halliday.
Contributors: Halliday, William R., 1926-
Publisher: Te-Cum-Tom Enterprises
Published: 1971
Place of publication: [Grants Pass, Or
Language: eng
Number of pages: 27
Subjects: Caves -- Oregon.; Oregon Caves National Monument (Or.); Oregon -- History.