Washington Boro Archaeological Sites
Manor Township, Lancaster County, Pennsylvania
Marker Inscription
This area contains one of the highest concentrations of archaeological sites in Pennsylvania. The sites range from small camps to large villages and cover 11,000 years of Native American culture. The largest villages were built by the Susquehannocks who controlled the fur trade in the region until 1675 when they were overcome by warfare and disease. Archaeology here has shaped our understanding of Native American lifeways.
Erected by Pennsylvania Historical and Museum Commission
The Story
Along a bend of the lower Susquehanna River lies one of the densest clusters of archaeological sites in Pennsylvania, holding traces of human presence stretching back some 11,000 years — from fleeting hunting camps to sprawling palisaded villages. Its most powerful inhabitants were the Susquehannocks, an Iroquoian-speaking people who dominated the regional fur trade with European colonists through much of the 1600s. By 1675, warfare with rival nations and devastating epidemics had shattered their power. Generations of excavation here have reshaped how scholars understand Native lifeways in the mid-Atlantic.
Why it matters
Washington Boro is a keystone site for American archaeology, preserving an unbroken record of Indigenous life from the earliest peoples through the rise and fall of a Native power that helped shape colonial-era commerce and diplomacy.
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Themes & tags
Nearby & related markers
Great Minqua Path
Manor Township, PA · est. 1951
This was the great artery of the mid-17th-century fur trade, the chief trail by which the Minqua—also known as the Susquehannock—carried beaver pelts eastward to the European settlements along the Delaware. The trade was so lucrative that the Swedes, Dutch, and English fought one another to control it. The path traced a route of immense commercial and political importance in the early contest for the region.
Martin Chartier - PLAQUE
Manor Township, PA · est. 1925
Martin Chartier was a French adventurer from Canada who had served at La Salle's Fort St. Louis in the Illinois country before leading a band of Shawnee eastward, first to Maryland and then, by 1697, to the Susquehanna at Pequea Creek. Settling on a tract granted him by William Penn, he became one of early Pennsylvania's most important Indian traders and interpreters, and an agent in Penn's treaties with the Susquehanna nations. His son Peter, born of his Shawnee wife, carried on the trade after him.
Captain Thomas Cresap (1703-1790) - PLAQUE
Lower Windsor Township, PA · est. 1924
When Thomas Cresap settled here in 1730, the border between Pennsylvania and Maryland was undrawn and hotly contested, and he claimed these lands for Lord Baltimore against the heirs of William Penn. His stubborn defense made him a flashpoint of "Cresap's War," the frontier feud over the disputed boundary. In 1736 Pennsylvania forces burned him out of his fortified log house and hauled him off a prisoner to Philadelphia.
Susquehanna Canal
Lower Windsor Township, PA · est. 1948
In the canal-building decades of the early 1800s, engineers threaded slackwater channels alongside the rocky lower Susquehanna, where the river itself was too swift and shallow to boat. The stone lockwork surviving beside the water here belonged to that system, floating coal, grain, lumber, and iron down from Columbia toward tidewater and the markets of Baltimore. Each mortared lock stepped loaded boats down the valley's fall, a quiet piece of engineering that once hummed with mule teams and boat traffic.