A 1655 Swedish map shows the fort on the west bank of the Schuylkill River, on Providence Island, just south of Minquas, also known as Eagle's Nest or Mingo Creek.
This was the primary trade route for furs from the Susquehannock people, and the Dutch named the trail "Beversreede" or "Beaver Road.
[6] It was not until 1655 that control of the area was regained by the Dutch in a military expedition led by Director-General of New Netherland Petrus Stuyvesant, establishing a regional capital at New Amstel.
Widening of the Schuylkill's channel, subsequent land reclamation, as well as other transportation and industrial infrastructure have dramatically changed the area.
But the site of the forts (whether on the east or west bank of the Schuylkill) is probably south of the mouth of Mingo Creek and north of the George C. Platt Bridge.