Clearfield-Philipsburg (PA)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by USGS
Date flown 11/46
Line spacing 0.8 (km)
Altitude 304.8 (m) above ground
Total distance 5,774 (km)
References
Counties Cameron - Centre - Clearfield - Clinton - Elk - Jefferson
Overlapping surveys

Data: Magnetic (M-Dz)