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River Facts

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The St. Lawrence River is one of the longest rivers in North America. And, is the outflow for the entire Great Lakes system. The Great Lakes hold nearly 20% of the world's fresh water.

The River flows 744 miles from Lake Ontario into the world's largest estuary, the Gulf of St. Lawrence. Only 114 miles of the River are located in New York State.

The River is 250 feet at its deepest point.

Flowing through both Canadian and US lands, the St. Lawrence River is a bi-national waterway, providing drinking water to local municipalities on both sides of the River and a vital tourism-based economy to local towns.

The St. Lawrence River has a discharge rate of 347, 849 cubic feet of water per second.

The Upper St. Lawrence is home to the Thousand Islands region. There are exactly 1,864. To be counted as an island, the piece of land must be surrounded by water, above water all year long, and support at least one tree.

For more information about the St. Lawrence River and Thousand Islands, visit:

  • Seaway Trail - The Seaway Trail is a National Scenic By-Way that leads tourists along the many historic and natural features of the St. Lawrence River and Lake Ontario in New York state.
  • Thousand Islands Photo Art - View the Thousand Islands with a birds-eye view through the photography of Ian Coristine.
  • Thousand Islands Life - An on-line magazine devoted to the history and culture of the Thousand Islands region.

Latest News

Save The River Reports on Week 3 of Beach Watch Program
Save The River’s Beach Watch Program is in the process of monitoring popular summer swimming locations on the River from July 7th through August 25th Save The River reports all samples passed in Week 3. read more

Push to Protect Waterways from Microplastics Continues
Senator Kirsten Gillibrand is calling for the Environmental Protection Agency to add microbeads to their list of Great Lakes contaminants. If added, the EPA would likely address the problem in their upcoming action plan. A move that Save The River is thankful for. read more

Plan 2014 must be enacted
Our communities, economy and the environment experienced a significant win last month. After five hard-fought years and a $20 million study that engaged nearly 200 stakeholder representatives and thousands of citizens, the International Joint Commission took unanimous, historic action to protect the St. Lawrence River, Lake Ontario and the North Country. read more

Restoring the Common Tern in the Islands
Each year Save The River teams up with the Thousand Islands Land Trust, Dr. Lee Harper of St. Lawrence Bird Observatory, and numerous volunteers to monitor Common Tern nesting grounds on the River. Save The River Board member John Peach has written an excellent history of the effort for the July 2014 issue of T.I. Life Magazine. read more

Save The River Reports on Week 2 of Beach Watch Program
Save The River’s Beach Watch Program is in the process of monitoring popular summer swimming locations on the River from July 7th through August 25th. Save The River reports all samples passed in Week 2. read more

Save The River Reports on Week 1 of Beach Watch Program
Clayton, NY (July 7, 2014) - Save The River’s Beach Watch Program is in the process of monitoring popular summer swimming locations on the River from July 7th through August 25th Save The River reports all samples passed in Week 1. For the 2014 sampling season Save The River volunteers are collecting water quality samples at ... read more

The Buffalo News Endorses Plan 2014
"Lakes Erie and Ontario are engines benefiting the economy, recreation and overall quality of life in this area while also providing a reliable source of water." Plan 2014 is the spark needed to restore vital Lake and River environment. read more

Stormwater Rule Action Day – Tuesday, August 20, 2013
In order to raise the profile of polluted runoff and highlight the importance of moving forward on the national stormwater rule, we’re asking our members and followers to reach out to their Members of Congress. read more

See our blog for more news!     

Get in Touch

409 Riverside Drive
Clayton, NY 13624
p: (315) 686-2010
e: info@savetheriver.org

River Photos

Off to the races by Pam Quimby  Resting by Pam Quimby  On the Rocks by Nick Apel  Classic Sunset by Barb Hupp  TI Park Library by Meg Kerr  Fall by Carrie Kerr  Girls by Juliane Bauer  Winter Navigation by Sherman Ward 
 Pictures from our Flickr photostream

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