Harrisville (also called Harrisia or McCartyville[1]) is an unincorporated community and ghost town located about 6 miles (9.7 km) northwest of New Gretna within Bass River Township in Burlington County, in the U.S. state of New Jersey, in the New Jersey Pine Barrens.

Near the mouth of the Oswego River, where its floodplain narrowed, he built a dam with 5 or 6 feet of head to run his mill.

[4]: 1918  The dam was enlarged in 1795, when a slitting mill, for cutting iron sheet into strips for nailmaking, was built at the site by Isaac Potts.

[4]: 1918 [5]: 71  Potts had recently built Martha Furnace upstream, and when he sold the latter in 1796, he noted that its pig iron would have a natural market at the slitting mill.

[5]: 85  This business was not very successful, and about 1815 it was converted to a paper plant,[1] powered by water brought by a canal from a dam on the Oswego,[5] a tributary of the Wading River.