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From Wikipedia, the free encyclopedia

Black line indicates southern border of Erie Triangle within Erie County
Black line indicates southern border of Erie Triangle within Erie County

The Erie Triangle is a roughly 300-square-mile tract of American land that was the subject of several competing colonial-era claims and which was eventually acquired by the U.S. federal government and sold to Pennsylvania so that the state would have access to a freshwater port on Lake Erie. The Erie Triangle land makes up a large portion of present-day Erie County, Pennsylvania.

Most of northwestern Pennsylvania came under American control following the 1784 Treaty of Fort Stanwix with the Iroquois Confederacy. The following year, a boundary dispute between New York and Pennsylvania erupted. Following a surveying effort by Andrew Ellicott representing the Pennsylvanians and James Clinton and Simeon DeWitt representing the New Yorkers, the western edge of New York was set at 20 miles (32 km) east of Pennsylvania's Presque Isle, a small peninsula off the coast of Erie, Pennsylvania. However, this left an unclaimed area, which came to be known as the Triangle Lands.

The Triangle Lands problematically fell under neither New York's nor Pennsylvania's charter, while both Connecticut and Massachusetts also spoke up with claims derived from their original colonial "sea to shining sea" grants.

Of these four competing claimants (Pennsylvania, New York, Connecticut, and Massachusetts), only Pennsylvania was landlocked, except for a very tiny strip of coastline. Following some pressure from the new federal government, all four states surrendered their claims to that entity, which then, in 1792, turned around and sold final rights to the 202,187 acres (818.22 km²) of land to Pennsylvania for $151,640.25 (75 ¢/acre). The Six Nations of the Iroquois Confederacy released the land to Pennsylvania in January 1789 for payments of $2,000 from Pennsylvania and $1,200 from the federal government. The Seneca Nation separately settled land claims against Pennsylvania in February 1791 for the sum of $800.[1] This was accomplished without the approval of the federal government and in violation of the Contract Clause[2] of the United States Constitution which reserved the right to make treaties to the federal government.[3] With this access to the Great Lakes, Pennsylvania was persuaded to accept the western boundary established by the Surveyor General of the Northwest Territory following passage of the Northwest Ordinance, in 1787.

Cornerstone of the Erie Triangle
Cornerstone of the Erie Triangle

The Erie Triangle is often described as a "tab" or "chimney" attached to the Keystone State. The water off the coast of the Erie Triangle is known as the Graveyard of Lake Erie because of the large number of shipwrecks that occurred in the area's stormy waters in the 18th and 19th centuries. It was also the site of a preliminary battle between forces that participated in the Battle of Lake Erie during the War of 1812. The battle itself took place in the Lake Erie Islands, at the western end of the lake, off the coast of Ohio.

YouTube Encyclopedic

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  • ✪ The Erie Triangle
  • ✪ American History: "How Our Country Grew" 1950 Progressive Pictures
  • ✪ Timeline of the American Revolution


See also


  1. ^ Nelson's Biographical Dictionary and Historical Reference Book of Erie County, Pennsylvania, Vol I, pp 103–04
  2. ^ Article I, section 10, clause 1
  3. ^ Andro Linklater, "The Fabric of America" pp 86
  • Explore PA History
  • Smith, Helene; George Swetnam. A Guidebook to Historic Western Pennsylvania, 2d. ed., Pittsburgh: University of Pittsburgh Press, 1991, pp.256–271.
  • Bilharz, Joy Ann. The Allegany Senecas and Kinzua Dam: Forced Relocation Through Two Generations, Lincoln: University of Nebraska Press, 1998.
  • Bates, Samuel P. History of Erie County, Pennsylvania, Chicago: Warner, Beers and Company, 1884.

This page was last edited on 9 May 2019, at 04:08
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