About
Title
Diabase boulders, Triassic age
Subject
Igneous and Metamorphic
Description
Diabase boulders, Triassic age, Swatara Hill east of Middletown. Date of photograph not known. George Ashley's tenure with the Survey, 1919-1946.
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.
