Bulletin of the National Speleological Society - ISSN 0146-9517
Volume 31 Number 2: 23-31 - April 1969

A publication of the National Speleological Society

Oregon Cave, Klamath Mountains, Oregon
William R. Halliday


Oregon Cave is a large, strike-oriented cavern in marble parallel to a mountainside, with unusual features suggesting that its upper, southern end has served as a collecting area for stormwater acces to the shallow phreatic zone in which most of the rest of the cave developed. With about 1.5 miles explored and mapped, it is by the the longest limestone cave known in the northwestern United States.

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