-
WV Imagery - Aerial 1-m color Orthophotos (2011) NAIP
The National Agriculture Imagery Program (NAIP) acquires aerial imagery during the agricultural growing seasons in the continental U.S. A primary goal of the NAIP program is to... -
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,...