Philadelphia, PA (AP Newswire) – Environmentalists and residents are trying to stop developers from cutting down an estimated 300-year-old tree in Pennsylvania.

The Philadelphia Inquirer reports technology firm Susquehanna International Group (SIG) is proposing cutting down the oak tree in Lower Merion Township as part of its plans for a new office building.

Arborists have listed the oak as a “Penn tree,” meaning it was alive before William Penn visited the area.