2002. 2003-02-04T20:04:50Z. 2015-01-20T23:23:37Z. North American Magnetic Anomaly Group. U.S. Dept. of the Interior, U.S. Geological Survey : For sale by USGS Information Services. English&French&Spanish. Public. North America, Hawaii, and Hawaii Island.
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2002. 2003-04-01T14:31:43Z. 2016-07-15T21:10:50Z. Geological Survey (U.S.). U.S. Geological Survey ; Information Services [distributor]. English. cartographic image. Public. Colorado, Gunnison County, and Gunnison County.