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1978. 2012-06-06T13:58:26Z. 2020-10-16T19:01:57Z. Sims, P. K. (Paul Kibler), 1918-2011. U.S. Geological Survey. English. Public. Minnesota and Saint Louis County.
1980. 2012-06-25T18:43:56Z. 2020-10-16T19:01:00Z. Sims, P. K. (Paul Kibler), 1918-2011. U.S. Geological Survey. English. Public. Minnesota and Saint Louis County.
1978. 2012-06-13T14:12:38Z. 2020-12-11T21:16:09Z. Ojakangas, Richard W. U.S. Geological Survey. English. Public. Minnesota and Saint Louis County.
