Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

[Illustrations: Buried Valley of the Susquehanna River: Anthracite Region of Pennsylvania]

Buried Valley of the Susquehanna River: Anthracite Region of Pennsylvania

Published Year

• 1950-1959 (2) *

Subject

• Anthracite coal mines and mining -- Pennsylvania. (2) *
• Geology -- Susquehanna River Valley. (2)

Author

• Ash, S. H. (Simon Harry), b. 1889 (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010