About
Title
Portage shale along main line of Pennsylvania Railroad
Description
Portage shale along main line of Pennsylvania Railroad. On dividing line between Holidaysburg and Altoona.; 18-39
Creator
Ashley, Geo. H. (George Hall), 1866-1951
Original Format
Photographs
Contact
For further information contact RA-pagslibrary@pa.gov or call 717-702-2020.
Contributing Institution
Pennsylvania Geological Survey
Sponsorship
This Digital Object is provided in a collection that is included in POWER Library: Pennsylvania Photos and Documents, which is funded by the Office of Commonwealth Libraries of Pennsylvania/Pennsylvania Department of Education.