Survey type | M-Dz (magnetic; digitized from contour maps) |
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Flown by | U.S. Geological Survey |
Date flown | 04/53-06/53 |
Line spacing | 0.8 (km) |
Altitude | 304.8 (m) above ground |
Total distance | 2,063 (km) |
References | |
Counties | New Castle - Cecil - Gloucester - Salem - Chester - Delaware |
Overlapping surveys |
Metadata | Questions & Answers - Outline - Parseable text - XML |
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Download | DE-PA-MD0046.zip |