Holtwood Dam

  In October 1905 McCall’s Ferry Power Co. began construction in Martic Township, Lancaster County, on what would be the second of four hydroelectric dams built to harness the power of the Susquehanna River below Harrisburg, Dauphin County. Twenty miles from the tidewater of the Chesapeake Bay, it was then the third longest dam in the world, built of solid concrete, 55 feet high. The...
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Advanced Technology “Rubs” the Ancient Past

With more than 400,000 visitors, the Pennsylvania Farm Show, held each January, is a terrific opportunity to highlight the best of Pennsylvania agriculture. It’s also an exciting venue to showcase Pennsylvania archaeology and remind the public that archaeological sites are important endangered resources that need protection. Since 1980, PHMC’s Bureau for Historic Preservation and The...
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