Pendleton, Oregon. Contains descriptions of caves in
the Pacific Northwest, which are almost all lava tubes. It also contains
the geology field trip road log and guide, which featured the channeled
scabland near the confluence of the Snake and Columbia rivers that resulted
from catastrophic glacial flooding. Has two large, folded maps in back pocket.
Edited by Thomas Kline 1993 149 pages, softbound
This guidebook may only be sold to NSS members, due to sensitive cave location information.