Bald Hill Bentonites A, B, and C: History and New Data Since 1988
Robert C Smith II (retired), Samuel W. Berkheiser, Pennsylvania Geological Survey, 3240 Schoolhouse Road, Middletown, PA 17057, and John H. Way, Lock Haven University
This paper provides information on the Bald Hill bentonites of central Pennsylvania, from the 2003 Field Conference of Pennsylvania Geologists guidebook.

