Join me at the Milanof-Schock Public Library in Mount Joy at 1184 Anderson Ferry Road for my Wednesday, March 12, 2025, at 6 pm Mysterious Petroglyphs of Safe Harbor presentation.
Click here to register for this free event.

I will be recounting my expeditions down the Lower Susquehanna to explore the mysterious Native American petroglyphs hidden on the ancient river at Safe Harbor. These 1,000-year-old rock carvings represent the oldest human-made artifacts in Lancaster County and one of the most significant archeological sites in the northeastern United States. I will discuss their significance, possible meanings, and some local legends surrounding the pictographs.
This in-person program is free and open, but registration is required. It is perfect for adults and older children who love to explore or enjoy local history. Please register every person in your group through the library’s website or call 717.786.1336.
Click here to register for this free event.
I’ll be handing out free Uncharted Lancaster stickers and magnets to attendees, plus replica arrowheads for the kids. Don’t miss out—I hope to see you there!


I will also be selling copies of 1821, 1875, and 1899 maps of Lancaster County, 1875 Lancaster City 4″x4″ Slate Coasters (four-pack), Veterans Memorial Bridge 4″x4″ Slate Coasters (four-pack), and Little Indian Rock Petroglyphs 4″x4″ Slate Coasters (variety four-pack) with fifty percent of every sale going to the Milanof-Schock Public Library!
Where to go
The Milanof-Schock Library is located at 1184 Anderson Ferry Rd, Mount Joy, PA 17552.
Click here to register for this free event.
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1864 Map of Mount Joy Township, Lancaster County, PAPrice range: $22.99 through $24.99
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1894 Map of Mount Joy PosterPrice range: $29.99 through $34.99
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