About
Subject
Nonmetallic Mineral Resources
Description
Wissahickon gneiss, Di Tomasso quarry, Broomall.
Creator
Stone, Ralph W. (Ralph Walter), 1876-1964
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.
