1971. 2018-05-29T18:04:31Z. 2018-05-29T18:04:31Z. Geological Survey (U.S.). Interior-Geological Survey. English. cartographic image. Public. Rhode Island and Rhode Island.
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1973. 2013-04-24T15:37:59Z. 2013-05-02T15:47:22Z. Geological Survey (U.S.). Interior-Geological Survey. English. Public. Nebraska and Grand Island Region.
1972. 2012-11-19T15:41:22Z. 2022-12-08T04:41:03Z. Geological Survey (U.S.). Interior-Geological Survey. English. Public. Nebraska, Lincoln Region, and Nebraska City Region.
1980. 2018-05-18T18:51:19Z. 2018-09-05T19:41:06Z. Beikman, Helen M. Interior-Geological Survey. English. cartographic image. Public. Alaska and Alaska.