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  St. Lawrence River and Seaway
What's New | Overview | General Resources | Education and Research
Publications | Tourism | Related Resources

 
What's New
Enbridge oil pipeline project delayed by spill concerns
The Watertown Daily Times (10/21)
Citing water-safety concerns, the Canada National Energy Board denied the application for an oil pipeline project proposed by Enbridge Pipelines of Calgary that would carry crude oil across the watersheds of Lake Ontario and St. Lawrence River.

County legislators endorse St. Lawrence River water level plan
The Watertown Daily Times (10/21)
A new plan to better regulate water levels in the St. Lawrence River and Lake Ontario was unanimously approved Monday by a committee of St. Lawrence County, N.Y., legislators.

St. Lawrence County lawmakers support plan to regulate St. Lawrence River water flow, levels
North Country Now (10/21)
The operations committee in St. Lawrence County, N.Y., is supporting a proposed water plan that would regulate flows and levels on the St. Lawrence River.

NYPA removes docks, buoys from St. Lawrence River
ctpost.com (10/18)
Beginning today, the New York Power Authority will be removing docks and buoys along the St. Lawrence River for the winter.

Microplastics found in sediment from the St. Lawrence, a worrisome first
CTV News - Montreal (10/13)
McGill professor states that "every sample we looked at had microbeads in it. In some cases they were so abundant that they rivaled what was reported in the literature of the most contaminated marine systems."

New water level plan for St. Lawrence River under consideration by county legislature
North County Now (10/11)
The St. Lawrence County Board of Legislators operations committee will consider supporting a water management plan for the St. Lawrence River.

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Overview
The St. Lawrence River and Seaway is of vital geographic and economic importance to the Great Lakes system, connecting the lakes to the Atlantic Ocean and providing navigation to deep-draft ocean vessels. Approximately 800 miles (1,287 km) long, the St. Lawrence River can be divided into three broad sections: the freshwater river, which extends from Lake Ontario to just outside the city of Quebec; the St. Lawrence estuary, which extends from Quebec to Anticosti Island; and the Gulf of St. Lawrence, which leads into the Atlantic Ocean.
 
The St. Lawrence River drops 226 feet between Lake Ontario and Montreal, Canada. To allow vessels to pass through the river and in and out of the Great Lakes, the St. Lawrence Seaway, a massive American-Canadian navigational project, was begun in 1954 and completed in 1959. The Seaway created the final link in the Great Lakes-St. Lawrence River system, connecting Duluth, Minnesota, some 2,340 miles (3,766 km) away, with the head of the Gulf of St. Lawrence, through a complex system of lakes, rivers, deepened channels, locks, and canals.

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General Resources
Lake Ontario and the St. Lawrence River
University of Wisconsin Sea Grant Institute
Provides geographic information on both water bodies.

Saint Lawrence Seaway Development Corporation
A U.S. government organization created to construct, operate and maintain the St. Lawrence Seaway between the Port of Montreal and Lake Erie.

St. Lawrence River at Cornwall AOC
Environment Canada
The St. Lawrence River at Cornwall Area of Concern (AOC) extends from the Moses-Saunders Power Dam at Cornwall to the Beauharnois Power Dam in Quebec.

St. Lawrence River at Massena AOC
U.S. Environmental Protection Agency (EPA)
The St. Lawrence River at Massena Remedial Action Plan (RAP) addresses an Area of Concern (AOC) within the legal boundaries of New York state.

St. Lawrence Seaway Management
Provides shipping and navigation information as well as current news.

The St. Lawrence Seaway
Canada's Digital Collections
Provides historical information on the St. Lawrence Seaway, including photographs.

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Education and Research
Environmental Science JK-12 Programs
St. Lawrence River Institute of Environmental Sciences
The Institute's all-ages hands-on programs are offered in both English and French, and are designed to meet with the Life System Strand of the Ontario Educational Curriculum.

Great Lakes St. Lawrence Seaway Study
The Canadian and U.S. governments are conducting a joint study to evaluate the infrastructure needs of the Great Lakes St. Lawrence Seaway system, specifically the engineering, economic and environmental implications of those needs as they pertain to the marine transportation infrastructure on which commercial navigation depends.

St. Lawrence Centre
Environment Canada
The SLC is involved in a multitude of studies and research programs aimed at better understanding how the ecosystems of the St. Lawrence River function and to keep this knowledge up to date.

St. Lawrence Observatory
Fisheries and Oceans Canada
This web portal is dedicated to the exchange, dissemination and presentation of data collected in the St. Lawrence marine ecosystem. Includes aerial views, current monitoring efforts, models, animations and more.

St. Lawrence River Institute and Environmental Sciences
An organization based in Cornwall, Ontario, dedicated to environmental research and education of large river ecosystems.

The Biosphère
Environment Canada
Opened in 1995 as the only museum of water in America dedicated to the St. Lawrence River and the Great Lakes, the Biosphère heightens public awareness of water's importance and the necessity to protect it.

The Lake Ontario-St. Lawrence River Study
International Joint Commission
Specific studies include the effects of water level fluctuation on wetlands, tourism, coastal zone, navigation, energy, and municipal water uses.

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Publications
Le Fleuve
Saint-Laurent Vision 2000
An online newsletter aiming to inform people, organizations or companies interested in the protection and the conservation of the St. Lawrence River.

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Tourism
The Great Lakes Circle Tour
Ride along on the 6,500-mile Great Lakes Circle Tour: a scenic, international road system connecting the five Great Lakes and the St. Lawrence River! For new visitors to the region, this online travel guide offers informational maps, road routes and estimated mileages, and links to major cities, camping and recreation areas, and natural attractions.

New York State's Seaway Trail
The New York State Seaway Trail is a 454-mile scenic route paralleling Lake Erie, the Niagara River, Lake Ontario and the St. Lawrence River.

St. Lawrence Seaway Port Map
A clickable map with information on the vairous ports and cities along the Seaway.

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Related Resources
GLIN: Boating in the Great Lakes Region
GLIN: Cruises in the Great Lakes Region
GLIN: Maritime in the Great Lakes Region
GLIN: Rivers and Lakes in the Great Lakes Region

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Updated: October 26, 2014
Maintained by: Christine Manninen, manninen@glc.org
Selected Photos: Copyright ©John and Ann Mahan
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