The mound was built by the Adena people, who are well known for mound building, and later used by the Hopewell people. It is thought to have accumulated over a period spanning 500 BCE- 1000 CE.
At Trinity Episcopal Cathedral in downtown Pittsburgh, there’s a small graveyard connecting the cathedral to First Presbyterian Church. This graveyard is home to some of the earliest Pittsburgh settlers, with one of the oldest marked graves dating back to 1779. The land was originally used as a burial ground for Native Americans as well as French and British settlers before being given to the trustees of the Episcopalian church in 1787. The first Trinity Cathedral was built in 1805, rebuilt and expanded in 1872, and then modernized in 1967 after a fire destroyed parts of the church.