Contour map showing altitude of bedrock surface in southern Philadelphia, Pennsylvania

J.B. Graham

doi:10.3133/ofr5073

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Contour map showing altitude of bedrock surface in southern Philadelphia, Pennsylvania

Open-File Report 50-73

By: J.B. Graham

https://doi.org/10.3133/ofr5073

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Abstract

Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Contour map showing altitude of bedrock surface in southern Philadelphia, Pennsylvania
Series title	Open-File Report
Series number	50-73
DOI	10.3133/ofr5073
Edition	-
Year Published	1950
Language	ENGLISH
Description	1 map
Google Analytic Metrics	Metrics page