Aeromagnetic survey of Naval Petroleum Reserve No. 4 and adjacent areas, 1947
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Open-File Report↗
Geology topics
F. Keller
Publications and source records attributed to F. Keller.
Aeromagnetic map of parts of Crawford, Washington, and St. Francois Counties, Missouri, showing total intensity anomalies
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Open-File Report↗
Aeromagnetic map of part of Tri-State mining district, showing total intensity anomalies
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Open-File Report↗