11![National Park Service / Johnstown / Pennsylvania / Allegheny Portage Railroad / Long-distance trails in the United States / Pennsylvania / Laurel Highlands / Staple Bend Tunnel National Park Service / Johnstown / Pennsylvania / Allegheny Portage Railroad / Long-distance trails in the United States / Pennsylvania / Laurel Highlands / Staple Bend Tunnel](/pdf-icon.png) | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2013-05-30 11:04:53
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12![Allegheny Portage Railroad National Park Service U.S. Department of the Interior Allegheny Portage Railroad Allegheny Portage Railroad National Park Service U.S. Department of the Interior Allegheny Portage Railroad](https://www.pdfsearch.io/img/6b8eb7ce7d826903244562f758f181f4.jpg) | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2012-06-14 16:16:55
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13![National Park Service U.S. Department of the Interior Natural Resource Program Center Allegheny Portage Railroad National Historic Site National Park Service U.S. Department of the Interior Natural Resource Program Center Allegheny Portage Railroad National Historic Site](https://www.pdfsearch.io/img/20742f7eb24d41f85d7cc9aad7dcde68.jpg) | Add to Reading ListSource URL: science.nature.nps.govLanguage: English - Date: 2010-09-10 12:28:53
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14![The story begins with a man-made lake in the mountains, 14 miles upstream from a busy industrial town. Staple Bend Tunnel is the oldest railroad tunnel in the U.S. and is a National Historic Landmark. It is part of the t The story begins with a man-made lake in the mountains, 14 miles upstream from a busy industrial town. Staple Bend Tunnel is the oldest railroad tunnel in the U.S. and is a National Historic Landmark. It is part of the t](https://www.pdfsearch.io/img/2b2a6ddafc0e581904dd8bae4135db79.jpg) | Add to Reading ListSource URL: www.indianacountyparks.orgLanguage: English - Date: 2009-07-01 13:13:37
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15![Allegheny Portage Railroad National Park Service U.S. Department of the Interior Allegheny Portage Railroad Allegheny Portage Railroad National Park Service U.S. Department of the Interior Allegheny Portage Railroad](https://www.pdfsearch.io/img/8e5e51f73186103e74b4ef473f28c8e9.jpg) | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2010-09-29 09:32:48
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16![National Park Service U.S. Department of the Interior Natural Resource Program Center Allegheny Portage Railroad National Historic Site National Park Service U.S. Department of the Interior Natural Resource Program Center Allegheny Portage Railroad National Historic Site](https://www.pdfsearch.io/img/8d12ecf907e53f761a214ffdfd54985c.jpg) | Add to Reading ListSource URL: www.nature.nps.govLanguage: English - Date: 2008-09-26 11:34:22
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17![National Park Service U.S. Department of the Interior Natural Resource Program Center Allegheny Portage Railroad National Historic Site National Park Service U.S. Department of the Interior Natural Resource Program Center Allegheny Portage Railroad National Historic Site](https://www.pdfsearch.io/img/dc7c602a3de07cfae79a9bc9e506acdf.jpg) | Add to Reading ListSource URL: www.nature.nps.govLanguage: English - Date: 2008-09-26 11:32:48
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18![Allegheny Portage Railroad National Park Service U.S. Department of the Interior Allegheny Portage Railroad Allegheny Portage Railroad National Park Service U.S. Department of the Interior Allegheny Portage Railroad](https://www.pdfsearch.io/img/2dcc6372477dfa0060ebc7cc2d76786d.jpg) | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2012-10-16 14:00:29
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19![Allegheny Portage Railroad National Historic Site National Park Service U.S. Department of the Interior Allegheny Portage Railroad National Historic Site National Park Service U.S. Department of the Interior](https://www.pdfsearch.io/img/282fffd3e36cb6b21a769410c9610861.jpg) | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2010-12-20 12:16:40
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20![Park News National Park Service U.S. Department of the Interior Mountain Messenger Park News National Park Service U.S. Department of the Interior Mountain Messenger](https://www.pdfsearch.io/img/794c964c17ba66af36d7b20d10020e28.jpg) | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2010-04-13 10:37:46
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