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1. A geological map of the United States

Yale Public content
1832. 2008-09-12T14:16:18Z. 2023-01-27T22:37:37Z. I.T. Hinton & Simpkin & Marshall,Engraved & printed by Fenner Sears & Co. English. cartographic image. Public. United States.
1976. 2018-05-09T17:56:09Z. 2018-05-09T17:56:09Z. Englund, Evan John. New Hampshire Department of Resources and Economic Development. English. cartographic image. Public. New Hampshire, Belknap County, Grafton County, Merrimack County, Connecticut River Valley, Belknap County., Grafton County., Merrimack County., United States, and Connecticut River Valley.
1938. 2018-05-09T16:47:57Z. 2018-09-05T19:35:57Z. Jenkins, Olaf P. (Olaf Pitt), 1889-1983. Division of Mines. English. cartographic image. Public. California, Sierra Nevada (Calif. and Nev.), California., United States, and Sierra Nevada.