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Per Park, John R (2002). Maryland mining heritage guide: including Delaware and the District of Columbia. Miami, Fla.: Stonerose Pub. Co. p. 63. ISBN 0970669720.
![]() | This article is rated Stub-class on Wikipedia's
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Per Park, John R (2002). Maryland mining heritage guide: including Delaware and the District of Columbia. Miami, Fla.: Stonerose Pub. Co. p. 63. ISBN 0970669720.