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Nature Conservancy Preserves in WV
From the site: "Boundaries of nature preserves in West Virginia. Most of these preserves are under easement or owned by the Nature Conservancy, but this is not always the case.... -
Natural Resources Canada Geophysical Surveys
Geophysical surveys have many applications in Earth science. Over the years Natural Resources Canada compiled data from various geophysical surveys that are used in industry as... -
USGS Mineral Resources: Magnetic anomaly maps and data for North America
From the site: "Airborne measurement of the earth's magnetic field over all of North America provides gridded data describing the magnetic anomaly caused by variations in earth... -
USGS Mineral Resources: Aeroradiometric Surveys of North America
From the site: "Data generated by aerial sensing of radiation emanating from the earth's surface provides general estimates of the geographic distribution of Uranium, Thorium,... -
Getech Gravity and Magnetic Global Coverage
Getech continues to grow what is already the world's most extensive commercial library of gravity and magnetic data. We have data covering almost every country in the world at a... -
BGI Gravity Databases
The overall task of BGI is to collect, on a world-wide basis, all measurements and pertinent information about the Earth gravity field, to compile them and store them in a...