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1Published 1969“...United States Department of the Interior, National Park Service :...”
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2Published 1941“...United States department of the interior, National park service,...”
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3Published 1963“...United States Department of the Interior, National Park Service,...”
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4Published 1994“...United States Department of the Interior, National Park Service,...”
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5by Allan, Chris“...United States Department of the Interior, National Park Service,...”
Published 2015
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6by Ringsmuth, Katherine Johnson“...United States Department of the Interior, National Park Service,...”
Published 2016
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7by Richner, Jeffrey“...United States Department of Interior, National Park Service,...”
Published 1997
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8by De Vore, Steven Leroy“...United States Department of the Interior, National Park Service,...”
Published 2014
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9by De Vore, Steven Leroy“...United States Department of the Interior, National Park Service,...”
Published 2015
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10by De Vore, Steven Leroy“...United States Department of the Interior, National Park Service,...”
Published 2015
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11Published 2016“...United States Department of the Interior, National Park Service,...”
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12Published 2007“...[United States Department of the Interior, National Park Service],...”
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13Published 2009“...National Park Service, United States Department of the Interior,...”
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14Published 2011“...National Park Service, United States Department of the Interior,...”
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15by Story, Isabelle F. (Isabelle Florence), 1888-1970“...United States Department of the Interior, National Park Service,...”
Published 1957
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16“...United States Department of the Interior, National Park Service,...”
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17by Krakow, Jere L.“...United States Department of the Interior, National Park Service,...”
Published 1986
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18by Foley, Connie“...United States Department of the Interior, National Park Service,...”
Published 1965
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19by Ringsmuth, Katherine Johnson“...United States Department of the Interior, National Park Service,...”
Published 2016
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20by Shedd, Charles E.“...United States Department of the Interior, National Park Service,...”
Published 1954
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