Box 48

Scope and Contents From the Series: This series primarily contains the slides Longenbaugh created, collected, or used for presentations. The majority of the slides relate to different aspects of groundwater, including artificial recharge, pumping, and well drilling. Some slides relate to his personal activities, including hunting and a trip to Seattle. A large set of slides documents his trip to Peru in 1978-79 and other South American locations. Also here is a small amount of photographs and negatives, most of which were...