Pre-1970 Field Trip Photos
Geology Field Trip, circa 1900
C.M. Hall was Professor of Geology at the time that this photograph was taken,
probably at gravel pits east of Glyndon, Minnesota.
(Photo in 1901-02 NDAC Catalog)
C.M. Hall was Professor of Geology at the time that this photograph was taken,
probably at gravel pits east of Glyndon, Minnesota.
(Photo in 1901-02 NDAC Catalog)