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Start Over You searched for: Author National Park Service Remove constraint Author: National Park Service Catalog Issue Year Decade 1950 - 1959 Remove constraint Catalog Issue Year Decade: 1950 - 1959 Sudoc Stem I 20.21 Remove constraint Sudoc Stem: I 20.21

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1. Fort Vancouver National Monument, Wash.

5. Katmai National Monument, Alaska.

6. Salem Maritime National Historic Site, Mass.

7. Chiricahua National Monument, Ariz.

8. Fort Frederica National Monument, Ga.

9. Petrified Forest National Monument. Ariz.

10. Thomas Jefferson Memorial.