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Airborne magnetic data, Munsungun region in northern Maine, 2021 Airborne magnetic data are provided here as part of the data release, "Airborne magnetic and radiometric survey, Munsungun Region, northern Maine, 2021." This website includes the processed aeromagnetic data provided in an ascii .csv file and a geoTIFF image showing the anomalous magnetic field. The contractor report is available on the parent page. Data for this survey were collected and processed by Sander Geophysics under contract with the USGS as part of the Earth Mapping Resources Initiative (Earth MRI) using a fixed wing aircraft with a magnetometer mounted in a tail stinger and a fully calibrated gamma ray spectrometer, data were collected along northwest-southeast flight lines spaced 250 meters (m) apart... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Allagash Lake, Aroostook County, Aroostook River, Bever Brook, Big Machias Lake, All tags... Carr Pond, Chamberlain Lake, Chesuncook Lake, Clear Lake, Eagle Lake, Earth Mapping Resources Initiative, EarthMRI, Fish River, Fish River Lake, Geology, Geophysics, and Geochemistry Science CenterGGGSC, Gero Island, Glazier Brook, Harrow Lake, Harvey Pond, Haymock Lake, Little Madawaska River, Longley Pondk, Loon Lake, MRP, Machias River, Maine, Mineral Resources Program, Mud Lake, Munsungun Region, Northern Maine, Penobscot County, Piscataquis County, Pleasant Lake, Portage Lake, Pratt Lake, Priestly Lake, Rocky Brook, Round Pond, Rowe Lake, Saint Froid Lake, Shallow Lake, Somerset County, Spider Lake, Squa Pan Lake, Square Lake, Third Lake, Twentyfive Mile Brook, Twin Lake, U.S. Geological Survey, USA, USGS, United States, United States of America, Webster Brook, Webster Lake, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, magnetic field (earth), potassium, thorium, uranium, vertical magnetic gradient, Fewer tags Airborne radiometric data, Munsungun region in northern Maine, 2021 Airborne radiometric data are provided here as part of the data release "Airborne magnetic and radiometric survey, Munsungun Region, northern Maine, 2021." This website includes the processed aeroradiometric digital flight line data (gamma spectrometry for K, U and Th) provided in an ascii .csv file and geoTIFF images showing a ternary image of relative K, U and Th and individual K, U, and Th values. Radiometric spectra are provided in ascii and binary formats within the contractor package on the parent page. The contractor report is also available on the parent page. Data for this survey were collected and processed by Sander Geophysics under contract with the USGS as part of the Earth Mapping Resources Initiative... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Allagash Lake, Aroostook County, Aroostook River, Bever Brook, Big Machias Lake, All tags... Carr Pond, Chamberlain Lake, Chesuncook Lake, Clear Lake, Eagle Lake, Earth Mapping Resources Initiative, EarthMRI, Fish River, Fish River Lake, Geology, Geophysics, and Geochemistry Science CenterGGGSC, Gero Island, Glazier Brook, Harrow Lake, Harvey Pond, Haymock Lake, Little Madawaska River, Longley Pondk, Loon Lake, MRP, Machias River, Maine, Mineral Resources Program, Mud Lake, Munsungun Region, Northern Maine, Penobscot County, Piscataquis County, Pleasant Lake, Portage Lake, Pratt Lake, Priestly Lake, Rocky Brook, Round Pond, Rowe Lake, Saint Froid Lake, Shallow Lake, Somerset County, Spider Lake, Squa Pan Lake, Square Lake, Third Lake, Twentyfive Mile Brook, Twin Lake, U.S. Geological Survey, USA, USGS, United States, United States of America, Webster Brook, Webster Lake, aeromagnetic surveying, aeroradiometric surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, magnetic field (earth), potassium, thorium, uranium, Fewer tags