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Allegheny Portage Railroad National Historic Site Slave catchers at Underground Railroad Days
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Allegheny Portage Railroad National Historic Site
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drawing of the South Fork Dam

Did You Know?
The dam at South Fork, PA, that broke causing the Johnstown Flood of 1889 was originally built for the Mainline Canal System. The Allegheny Portage Railroad was an important part of the Mainline, so the stories are interconnected.
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Last Updated: August 23, 2007 at 14:12 MST