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Two Countries, One Forest

A Canadian-U.S. collaborative of conservation organizations, researchers, foundations and conservation-minded individuals. Our international community is focused on the protection, conservation and restoration of forests and natural heritage from New York to Nova Scotia, across the Northern Appalachian Acadian ecoregion.


The Organization

Two Countries, One Forest is a collaborative organization with representatives from Canada and the United States that work to conserve and restore the forests and natural heritage of the Northern Appalachian-Acadian ecoregion.

Learn more about history, mission, and area at risk.

Credit: The Nature Conservancy in Maine
Credit: The Nature Conservancy in Maine

The Ecosystem

The Northern Appalachian-Acadian Ecoregion encompasses over 330,000 square kilometers (nearly 82 million acres) in the northeastern U.S. and southeastern Canada, including all or a portion of western Massachusetts, northern New York, Vermont, New Hampshire, Maine, southern Québec, New Brunswick, Nova Scotia, and Prince Edward Island. Ecologically diverse, it is dominated by spruce-fir and northern hardwood forests, extensive coastlines, inland mountain ranges, and glacially carved landscapes. It is also an ecological transition zone between northern boreal and southern temperate forests.

The NAPA is the most intact ecoregion in the eastern United States and contains the broadest extent of nearly contiguous natural forest. Forest cover has been increasing since extensive deforestation in the 19th century so that the remaining areas with over 80% natural cover amount to over 50% of the region. It also contains diverse aquatic, riparian, wetland, and coastal habitats, including floodplains, marshes, estuaries, peatlands, and sandy beaches. There are still large, intact forest blocks in the NAPA with few roads and diverse flora and fauna.

The Idea

We noticed an absence, and from that absence arose an idea. Who was tracking the cumulative ecological effects of today’s land use decisions in this ecoregion on either side of the border? Until this point, conservationists, researchers, and government agencies in the U.S. and Canada had little history of working together to protect habitats, histories, and species tied to this ecoregion. Learn more about who we are and the work we’ve done.

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