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Niagara Falls in Niagara Region, Ontario — Central Canada (North America)
 

The Boundary Waters Treaty

1909 - 2009

 
 
The Boundary Waters Treaty Marker image. Click for full size.
Photographed by Mike Wintermantel, April 21, 2013
1. The Boundary Waters Treaty Marker
Inscription.
"It is further agreed that the waters herein defined as boundary waters and waters flowing across the boundary shall not be polluted on either side to the injury of health or property of the other."

Widely regarded as the first environmental agreement, the 1909 Boundary Waters Treaty was the first international treaty to articulate principles of boundary water resource development, to address cross-boundary pollution and to prohibit the diversion of boundary waters. Further, in establishing the International Joint Commission to prevent and resolve disputes between Canada and the United States, the Boundary Waters Treaty stands apart for its uncommonly good approach to natural resource governance and stewardship.

On June 13, 2009, the Governments of Canada and the United States commemorated the 100th Annversary of the Boundary Waters Treaty with a ceremony on the Rainbow Bridge overlooking Niagara Falls - its natural beauty protected under Article V. At that occasion, the Governments announced the opening of negotiations to update the Great Lakes Water Quality Agreement to address modern environmental issues affecting the Great Lakes Basin Ecosystem. The cross-border Niagara region celebrated this historic event by organizing Boundary Waters Week, June 5-14, 2009.

"The
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Boundary Waters Treaty of 1909 made official something that people from both sides of the border have known for generations: that the rivers, the lakes, the streams, the watersheds along our boundary do not belong to one nation or to another, but to both of us."
Hillary Rodham Clinton
Secretary of State, United States of America


"In its centenary year, the International Joint Commission remains a testament to the good will, hard work and forward thinking that bind our great nations together."
Lawrence Cannon
Minister of Foreign Affairs, Canada

A century of cooperation protecting our shared waters
Un siθcle de collaboration ΰ protιger nos eaux communes

Boundary Waters Treaty Centennial Committee Honorary Chairs

Congresswoman Louise M. Slaughter • Member of Parliament Rick Dykstra • Mayor of Niagara Falls, New York, Paul Dyster • Mayor of Niagara Falls, Ontario, Ted Salci • Consul General of Canada, Stephen Brereton • Consul General of the United States, John Nay

International Joint Commission Commissioners
Canadian Chair, Rt. Hon. Herb Gray • United States Chair, Hon. Irene Brooks • United States Commissioner, Allen Olsen • United States Commissioner, Sam Speck • Canadian Commissioner, Pierre Trιpanier • Canadian Commissioner,
The Boundary Waters Treaty Marker image. Click for full size.
Photographed by Mike Wintermantel, April 21, 2013
2. The Boundary Waters Treaty Marker
Lyall Knott

Major Sponsors
Ontario Power Generation • New York Power Authority
 
Erected 2009 by Ontario Power Generation - New York Power Authority.
 
Topics. This historical marker is listed in these topic lists: EnvironmentPeaceWaterways & Vessels. A significant historical year for this entry is 1909.
 
Location. 43° 5.526′ N, 79° 4.11′ W. Marker is in Niagara Falls, Ontario, in Niagara Region. It is on River Road 0.2 kilometers south of Hiram Street, on the right when traveling north. The marker is a blue plaque on a low rock, 5 metres south-east of River Rd (beside the road's sidewalk), and 40 metres north-east of the Rainbow International Bridge, across from (and a tiny bit south of) Bird Kingdom. Touch for map. Marker is at or near this postal address: 5651 River Rd, Niagara Falls ON L2E 7M7, Canada. Touch for directions.

Regionally, this marker is on Ontario’s Golden Horseshoe and in Niagara Canada. It is also in Central Canada. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once a British colony, the Viceroyalty of New France, the Haudenosaunee (Iroquois) Confederacy, and Rupert’s Land.

Other nearby markers. At least 8 other markers are within walking distance of this marker: International Rainbow Bridge Commemoration (about 120 meters away, measured in a direct line); Rainbow Bridge (about 150 meters away); Upper Steel Arch Bridge (approx. 0.3 kilometers away); Upper Suspension Bridge (approx. 0.3 kilometers away); This Tablet Commemorates The Public Spirit And Generosity Of Sir Harry Oakes Bart (approx. 0.3 kilometers away);
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Thomas Baker McQuesten (approx. 0.4 kilometers away); Oakes Garden Theatre (approx. 0.4 kilometers away); The Falls View Bridges (approx. 0.4 kilometers away in the U.S.). Touch for a list and map of all markers in Niagara Falls.
 
 
Credits. This page was last revised on November 7, 2025. It was originally submitted on April 21, 2013, by Mike Wintermantel of Pittsburgh, Pennsylvania. This page has been viewed 801 times since then and 31 times this year. Last updated on August 29, 2025, by Kevin Westell of St. Catharines, Ontario. Photos:   1, 2. submitted on April 21, 2013, by Mike Wintermantel of Pittsburgh, Pennsylvania. • Devry Becker Jones was the editor who published this page.
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Jun. 25, 2026