Oregon caves, discovery & exploration
Subtitle: Oregon Caves National Monument
By: by Frank K. Walsh and William R. Halliday
Contributors: Halliday, William R., 1926-; Oregon Caves National Monument
Edition: Bicentennial ed
Publisher: Te-Cum-Tom Publications
Published: 1976
Place of publication: Grants Pass, Ore
Language: eng
Number of pages: 27
Subjects: Caves -- Oregon; Oregon -- History