In its 27-year history, TIWLT has had a hand in conserving over 5,000 acres of land between Gananoque, Brockville, and the Rideau Canal, an area that is incredibly biologically important.

This area, known locally as the Thousand Islands Watershed, lies on the Frontenac Arch, a UNESCO World Biosphere. Here, TIWLT’s properties help support critical habitat for 1/3 of Ontario’s species at risk, including Endangered butternut trees and Threatened gray rat snakes. Their properties also conserve the ecosystem services that clean and control the water, purify the air, and sequester carbon.

TIWLT comes to own or steward properties through conservation easements (legal covenants between landowners and the land trust that ensure the property remains as conservation land regardless of who owns it in the future), fee-simple donations (transfer of ownership to the land trust), and purchases of land on the market that hold strong ecological values. TIWLT also works to broker the transfer of land from private to public in situations when this results in the best conservation outcomes for the land.

Following their ambition, TIWLT has challenged themselves to conserve and additional 1,000 acres of strategically placed land. Anchored in Leeder’s Creek, upstream of Charleston Lake, this “Thousand Acre Challenge” will help ensure that the water flowing through the watershed and into the St. Lawrence River remains clean and controlled. In the River itself, TIWLT has set its sights on a small channel and 20 island acres that is a nursery for endangered fish and turtle species.

The Thousand Acre Challenge has a lofty fundraising goal of $450,000, and support from U.S. donors has been, and continues to be, paramount in TIWLT’s success.

Executive Director: Calder Schweitzer,
President: Don Ross,
19 Reynolds, Lansdowne, Ontario M4P 1L0  (613) 659-4824

Online Donations – Thousand Island Watershed Land Trust

Your contribution makes it possible for Canadian land trusts and American Friends to permanently protect Canada’s lakes, rivers, shorelines, wetlands, forests, for the benefit or fish, wildlife, and all of us.

American Friends assists organizations dedicated to protecting Canada’s iconic landscapes by accepting gifts of cash, securities and land from US taxpayers who recommend grants to American Friends’ partners. American Friends is recognized by the U.S. Internal Revenue Service as a publicly-supported charity; therefore gifts to American Friends are tax deductible to U.S. taxpayers

By selecting Thousand Island Watershed Land Trust from the list below you can recommend that your donation (minus a small percentage retained by American Friends to cover costs of administering its grant program) be used to make a grant to a specific Canadian conservation organization. Grantees meet American Friends’ strict eligibility criteria and are in good standing with American Friends. Please read the terms for making grant recommendations to American Friends. (If your favorite Canadian conservation charity is not listed, encourage them to contact American Friends.)

If you wish to support American Friends’ innovative and successful cross-border conservation program that is permanently preserving ecologically significant land and water across Canada simply select its name from the list below.

By selecting a Canadian grantee, you are acknowledging that American Friends’ board has absolute discretion and exclusive power to decide whether or not to follow your recommendation and that, as required by the Internal Revenue Service, American Friends will not accept contributions earmarked for or directed to a specific Canadian organization.

You can donate as little or as much as you’d like. Just type the amount in the box below and click Donate Now to begin the process. The website will issue a receipt and an official gift acknowledgement letter for tax purposes will follow via email.

If you prefer to send a check go to the Donate Cash page for instructions.  To donate securities, please contact Sandra Tassel, 360-515-7171 or


Due to credit card processing fees and grant administration the minimum online donation is $200. However there is no maximum!

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Donation Total: $200 One Time