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Author: United States. National Park Service. Geologic Resources Division,
Format: eBook
Collection: Gov Pub Electronic
Subject: Environmental monitoring
Subject: Historic sites
Institution
Collection
Format
Subject
Environmental monitoring
6
Geology
Historic sites
1
Allegheny Portage Railroad National Historic Site (Pa.) Environmental conditions
1
Battlefields
1
Bent's Old Fort National Historic Site (Colo.) Environmental conditions
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1
Friendship Hill National Historic Site (Pa.) Environmental conditions
1
Golden Spike National Historical Park (Utah) Environmental conditions
1
Lyndon B. Johnson National Historical Park (Tex.) Environmental conditions
1
Monocacy National Battlefield (Md.) Environmental conditions
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Author
Language
Literary Form
Region
2
Pennsylvania
1
Allegheny Portage Railroad National Historic Site
1
Allegheny Portage Railroad National Historic Site (Pa.)
1
Bent's Old Fort National Historic Site
1
Bent's Old Fort National Historic Site (Colo.)
1
Colorado
more ...
1
Friendship Hill National Historic Site
1
Friendship Hill National Historic Site (Pa.)
1
Golden Spike National Historic Site
1
Golden Spike National Historical Park (Utah)
1
Lyndon B. Johnson National Historical Park
1
Lyndon B. Johnson National Historical Park (Tex.)
1
Maryland
1
Monocacy National Battlefield
1
Monocacy National Battlefield (Md.)
1
Texas
1
Utah
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Year of Publication