Erie

Millcreek Township, PA · est. 1946

Pennsylvania's only outlet to the Great Lakes came through the Erie Triangle, a wedge of shoreline the state secured in 1792 to gain a harbor on Lake Erie. Surveyors Andrew Ellicott and William Irvine laid out the town in 1795 on ground that had already carried French, British, and American forts. In 1813 Oliver Hazard Perry built his fleet in this sheltered harbor before sailing out to win the Battle of Lake Erie.

Millcreek Township, PA · est. 1946

Long before highways, travelers crossed this high ground on the Presque Isle Portage, the carrying-path that linked Lake Erie to the headwaters flowing toward the Ohio. It formed part of the older Venango Trail worn by Native people through the forests of northwestern Pennsylvania. In 1753 the French widened an Indian path into their military French Road, and the modern highway still shadows and departs from that ancient route here.

Waterford Township, PA · est. 1946

This spot once sat on Pennsylvania's original northern boundary, the line that hemmed the state in before 1792. In that year the commonwealth paid more than $151,000 for the Erie Triangle, buying itself a foothold and a port on Lake Erie. The old line, long erased from maps, still crossed the highway here within living memory of the marker's makers.

McKean, PA · est. 1946

Before 1792, Pennsylvania's northern edge ran right across this ground, and the land above it belonged to no state's settled claim. That year Pennsylvania bought the wedge known as the Erie Triangle, paying just over $151,000 to gain a genuine harbor on the Great Lakes. Without that purchase, the state would have been boxed out of Lake Erie entirely.