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RT @NgRubix: "Aeromagnetic map of the Mt. Shasta area, California" (USGS public data) https://t.co/ooqX3QOAHq Why did the USGS surveyed th…
RT @NgRubix: "Aeromagnetic map of the Mt. Shasta area, California" (USGS public data) https://t.co/ooqX3QOAHq Why did the USGS surveyed th…
RT @NgRubix: "Aeromagnetic map of the Mt. Shasta area, California" (USGS public data) https://t.co/ooqX3QOAHq Why did the USGS surveyed th…
"Aeromagnetic map of the Mt. Shasta area, California" (USGS public data) https://t.co/ooqX3QOAHq Why did the USGS surveyed the magnetic field of this area ? 😉