INTRODUCTION 1
HOW OREGON CAVES WERE FORMED 3
The Raw Material—Rock 3
Underground Erosion 7
Decoration 14
The Cave’s Age 24
Other Cave Features 25
LIFE IN THE CAVES 27
Plant Life 29
THE FUTURE 30
HUMAN HISTORY 30
CONSERVATION AND PRESERVATION 31
GLOSSARY OF CAVE TERMS 34
SUGGESTED READINGS 36
RULES & REGULATIONS 37
ADMINISTRATION 37
[Illustration: Paradise Lost]