Buried Valley of the Susquehanna River: Anthracite Region of Pennsylvania

Author:	Ash, S. H. (Simon Harry), b. 1889
Year:	1950
Document Type:	N/A
Issuing Agency:	United States. Bureau of Mines.
SUDOC:	28.3:494
Series:	United States Bureau of Mines Reports
Report Number:	Bulletin 494
Subjects:	Anthracite coal mines and mining -- Pennsylvania.
	Geology -- Susquehanna River Valley.
Link:	http://digital.library.unt.edu/ark:/67531/metadc12653/