SUGGESTED READING
Davidson, E. J., “History of the Discovery of the Marble Halls of Oregon.” Oregon Historical Quarterly, Vol. 23, pp. 274-276 (1922).
Folsom, Franklin, Exploring American Caves. New York, Crown Publishers, Inc., 1956.
Halliday, William R., Adventure Is Underground. New York, Harper and Brothers, Publishers, 1959.
Mohr, Charles E., and Howard N. Sloane, Celebrated American Caves. New Jersey, Rutgers University Press, 1955.
Wells, Francis G., Preliminary geological map of southwest Oregon. U.S.G.S. Mineral Investigation Map, MF 38, 1955.
RULES AND REGULATIONS
(Briefed)
1. No person shall enter Oregon Caves unless accompanied by an authorized guide.
2. Children under 6 years of age are not permitted in the caves. A nursery is provided.
3. The destruction, injury, defacement or removal of any of the natural features, rocks, plants, or animals in the caves or Monument is prohibited.
4. No canes, umbrellas or sticks of any kind may be taken into the caves.
5. Dogs and cats must be kept under physical control and are not allowed on trails or in the buildings.
6. Careless disposal of trash is prohibited; please use the containers placed nearby.
THIS IS YOUR NATIONAL MONUMENT
Please help keep it clean and undamaged for those who follow you.