1926. 2018-07-02T18:08:58Z. 2018-07-02T18:08:58Z. Dyer, William Spafford, 1894-. Geological Survey. English. cartographic image. Public. New Brunswick and Chipman Region. Paleozoic and From 230 to 570 million years ago.
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1925. 2018-06-25T19:51:50Z. 2018-06-25T19:51:50Z. Hanson, George, 1891-. Geological Survey. English. cartographic image. Public. British Columbia and Driftwood Creek Region.
1926. 2018-07-03T17:43:20Z. 2018-07-03T17:43:20Z. Stockwell, C. H. (Clifford Howard), 1897-1987. Geological Survey. English. cartographic image. Public. Yukon and Galena Hill Region.
1965. 2018-05-22T17:25:55Z. 2018-05-22T17:25:55Z. Dane, C. H. (Carle Hamilton), 1900-1968, cartographer. Geological Survey. English. cartographic image. Public. New Mexico and New Mexico.
1926. 2018-07-02T18:06:17Z. 2018-07-02T18:06:17Z. Dyer, William Spafford, 1894-. Geological Survey. English. cartographic image. Public. New Brunswick and Minto Region. Paleozoic and From 230 to 570 million years ago.
1977. 2018-06-13T19:03:16Z. 2018-06-13T19:03:16Z. Muller, Ernest Hathaway, 1923-. Geological Survey. English. cartographic image. Public. New York (State) and Niagara Region. Quaternary and From 2 million years ago.
1924. 2018-06-19T19:09:52Z. 2018-09-05T20:08:13Z. Tanton, T. L. Geological Survey. English. cartographic image. Public. Ontario and Thunder Cape Region.
1914. 2018-06-25T19:55:56Z. 2018-09-05T20:08:12Z. Cairnes, D. D. (DeLorme Donaldson), 1879-1917. Geological Survey. English. cartographic image. Public. Alberta, Moose Mountain Region, and Moose Mountain Region (Alta.). Cretaceous.
