Aeromagnetic map of the Allentown quadrangle, Northampton, Lehigh, and Bucks Counties, Pennsylvania
Main Author: | Geological Survey (U.S.) |
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Other Authors: | Bromery, Randolph W. 1926-2013., Bennett, Bruce L. 1917-2003. |
Format: | Map |
Language: | English |
Published: |
Washington, D.C. :
The Survey,
1959.
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Physical Description: |
1 map ; 114 x 87 cm, on sheet 126 x 101 cm, folded in envelope 30 x 24 cm. |
Series: |
Geophysical investigations (Geological Survey (U.S.)) ;
map GP-213. |
Subjects: |
Item Description: |
Includes note, index maps, and map. "Aeromagnetic survey flown at 500 feet above ground, 1956." |
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Physical Description: |
1 map ; 114 x 87 cm, on sheet 126 x 101 cm, folded in envelope 30 x 24 cm. |