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Lonely Planet Eastern USA
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Penn's woods, 1682-1982 : the oldest trees in Pennsylvania, New Jersey, Delaware, and Eastern Shore, Maryland
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A walk in the woods
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Appalachian Trail names : origins of place names along the AT
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Northeast and metropolitan regions
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A walk in the woods [rediscovering America on the Appalachian Trail]
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The coast : a journey down the Atlantic Shore
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Frommer's comprehensive travel guide. Delaware & Maryland
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Lonely Planet. New York & the Mid-Atlantic
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Lonely Planet. Eastern USA
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Lonely Planet New York City
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Historical trails of eastern Pennsylvania
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Lonely Planet New York & the Mid-Atlantic
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Pennsylvania off the beaten path : discover your fun
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Backroads of Pennsylvania : your guide to Pennsylvania's most scenic backroad adventures
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Dogtown : death and enchantment in a New England ghost town
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Pennsylvania
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Hopewell Village; a social and economic history of an iron-making community
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The plenty of Pennsylvania : samples of seven cultures persisting from colonial days
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True tales of the Clarion River, with 1971 supplementary chapter; a reference and textbook for schools, libraries, and historians
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History of interesting places on the Susquehanna trail, "the scenic highway of America,"
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Pennsylvania beautiful
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The old and new Monongahela
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Shadows of the Rhine along the Tulpehocken
