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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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61. Walnut Canyou [National Monument, Ariz.]

64. Chiricahua National Monument, Ariz.

66. Antietam National Battlefield Site, Md.

68. Buck Island Reef [National Monument].

69. Capitol Reef National Monument, Utah.