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Irregularly spaced gravity data of the conterminous United States have been converted to a digital data set in gridded format suitable for contouring and analytical transformations. The data consist of Bouguer gravity-anomaly values on land and free-air gravity-anomaly values offshore. The data have been terrain corrected in areas of substantial relief and extensively edited to remove erroneous values. Contours generated from this grid were used in the preparation of regional gravity-anomaly maps of the United States.

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