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Modoc South-central (CA)

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Survey type M-Dz (magnetic; digitized from contour maps)
Flown by Aero Service Corporation
Date flown ?/57
Line spacing 3.2 (km)
Altitude 2438 (m) by barometer measurement
Total distance 772 (km)
References
U.S. Geological Survey, 1999, Digitized aeromagnetic datasets for the conterminous United States, Hawaii, and Puerto Rico; Open-File Report 99-557

https://pubs.er.usgs.gov/publication/ofr99557
Counties Lassen - Modoc
Overlapping surveys

Data: Magnetic (M-Dz)

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Download CA_CA03D.zip