1986. 2023-10-26T19:57:25Z. 2023-10-27T03:02:28Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Colorado River Region (Colo.-Mexico), North America, and Colorado River Region.
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2. Bouguer gravity map of the northeastern United States and adjacent Canada [cartographic material]
1980. 2002-06-01T04:00:00Z. 2023-01-05T04:01:20Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Canada and Northeastern States.
1981. 2002-06-01T04:00:00Z. 2023-02-14T04:01:25Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. San Juan River Watershed (Colo.-Utah), Arizona, New Mexico, and San Juan River Watershed.
1982. 2002-06-01T04:00:00Z. 2023-05-06T03:01:25Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Oregon.
1985. 2002-06-01T04:00:00Z. 2023-09-28T03:01:38Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. New England. and Québec (Province).
1981. 2002-06-01T04:00:00Z. 2023-01-10T04:01:27Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. California.
1992. 2012-08-01T15:08:50Z. 2015-07-07T19:07:01Z. Geological Survey of Canada. Geophysical Data Centre. The Survey. English&French. Public. Canada.
1992. 2012-08-01T14:56:37Z. 2015-07-07T19:00:34Z. The Survey. English&French. Public. North America.
1992. 2012-08-01T14:46:30Z. 2015-07-07T19:04:54Z. The Survey. English&French. Public. North America.
1992. 2012-08-01T15:02:44Z. 2015-07-07T19:05:36Z. Geological Survey of Canada. Geophysical Data Centre. The Survey. English&French. Public. Canada.