In 1720, iron maker Thomas Rutter built a manor house at the Pine Forge station and under it dug tunnels to hide from hostile Native Americans. Later, when John Potts Rutter lived in the house, the tunnels were used to hide runaway slaves. Because Pine Forge was so far from cities (where slave hunters lurked), it was a safe haven for runaway slaves. Rutter also needed many laborers to run his business, so he employed freed and runaway slaves alike. Employment helped runaways earn money for their journey (Blockson 1981). The manor house is now one of the buildings at Pine Forge Academy, a Seventh-Day Adventist boarding school. African Americans currently own the “Manor House” and the tunnels are still in the cellar (Cohen 2005).
https://sites.psu.edu/localhistories/woven-with-words/the-underground-railroad-in-the-19th-century/