HistoricSiteMarkers
Colonial America

Printz's (Old Swedes) Mill

Philadelphia, Philadelphia County, Pennsylvania

Marker Inscription

The first European water-powered mill in what is now Pa. was built here c. 1645 by New Sweden governor, Johann Printz. New Sweden Colony was established in 1638 and existed until 1655, when the Dutch, and later, William Penn claimed the territory. Built along the Great Minquas Path, the primitive Norse or Splash grist mill was among the first industrial sites in Pa. Its square anchoring holes remain, visible below the mill dam constructed later.

Erected by Pennsylvania Historical and Museum Commission

The Story

Around 1645, Johann Printz, governor of the short-lived New Sweden Colony, ordered a simple water-powered grist mill built here—the first such European mill in what would become Pennsylvania. New Sweden itself lasted only from 1638 to 1655 before the Dutch, and eventually William Penn, claimed the land. Set along the Great Minquas Path, a Native American trade route, the primitive "splash" mill was among the region's earliest industrial sites, and its square anchoring holes can still be seen below the later dam.

Why it matters

This spot marks both the fleeting Swedish chapter of American colonization and the very beginning of Pennsylvania's long industrial story, where Europeans first harnessed a river to grind grain.

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