Geology and Sequence Stratigraphy of Black Diamond Mine, a Tour for Teachers
Ray sullivan (SF state emeritus) and morgan sullivan (exxon mobil), April 6, 2002
Download the field trip guidebook here.
Educators working in the coal mine.
Noontime barbecue attended to by NCGS officers (from left) Phil Reed (Treasurer), Dan Day (Secretary), and Tridib Guha (Field Trip Coordinator).