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DCNR America250PA GeoTrail: The Harbor Traditional Cache

Hidden : 3/19/2026
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size:   regular (regular)

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Geocache Description:


This cache is part of the 25 cache Pennsylvania State Parks America250PA GeoTrail.  Have fun exploring and discovering Pennsylvania's history!

Photo: French Map 1750s of the Penninsula showing the location of the French fort.

  • Built by the French on May 15, 1753, occupied until 1759.
  • Good site for a fort with the protection of the peninsula the Bay was considered a safe harbor. 
  • The French named the peninsula Presque Isle meaning almost an Island. 
  • This fort was in conjunction with three other forts, Fort Le Boeuf, Fort Machault, and Fort Duquesne for establishing a fur trade route. 
  • Fort Presque Isle was the first stop on the supply chain from Fort Niagara.
  • The British then built a fort in the same location in Erie in 1760 and occupied until 1763.
  • General Anthony Wayne arrives in the Erie area in 1786.  In 1795 200 federal troops from Waynes army, under the direction of Captain John Grubb, built a block house on Garrison Hill also named fort Presque Isle. 
  • This site was also chosen by Americans to build a fleet of ships led by captain Oliver Hazard Perry in 1813 to fight a battle against the British “The Battle of Lake Erie”.

Drawing from 1839 of Presque Isle Harbor.  Shows light house in foreground and a town across the inlet from the lighthouse. Boats are in the harbor.

Photo: Presque Isle Harbor 1839

  • The U.S. Army Corp of Engineers did a survey of Presque Isle in 1818 and was given the task to make the harbor navigable for large ships. 
  • The Engineers designed the north and south piers, construction began in 1823 and completed and functioning in 1830.   
  • The function of the two piers were designed to self-dredge the channel maintaining a depth of 16 feet. 
  • Today the channel is maintained at a depth close to 40 feet. 

For more information about this state park and its amenities please visit the website: Presque Isle State Park | Department of Conservation and Natural Resources| Commonwealth of Pennsylvania.

A circle with the PA DCNR logo in the middle, surrounded by the words "Placed with Permission"

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