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Start Over You searched for: Publish Year Decade 1960 - 1969 Remove constraint Publish Year Decade: 1960 - 1969 Sudoc Stem I 29.21 Remove constraint Sudoc Stem: I 29.21

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31. Gettysburg National Military Park, Pa.

33. Golden Spike [National Historic Site].

38. Hopewell Village National Historic Site, Pa.

40. John Muir National Historic Site, Calif.