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Beneath the streets of Trenton lies one of the most significant archaeological sites in New Jersey — the remains of a late 18th-century industrial complex that processed goods along Petty’s Run creek. Excavations have revealed the foundations of buildings dating to the 1720s through the early 1800s, offering a rare look at urban colonial and early American life in what was once a major commercial hub. The New Jersey State Museum in Trenton tells the broader story of the city’s layered history, from Lenape occupation through the Industrial Revolution, and the collections are among the finest in the state.
