In New Brunswick, the IAT/SIA begins at the United States/Canadian international border in Perth-Andover and then accompanies the Tobique River through the village of Plaster Rock to Nictau. The trail then continues northeast to Mount Carleton Provincial Park before heading west to St. Quentin and Kedgewick. It then turns northeast again crossing the Upsalquitch River and then the mouth of the Restigouche River at Tide Head, NB. The trails turns west here, and crosses the Restigouche into Quebec at Flatlands, New Brunswick.

Length: 298km / 185mi.

Note: Length may vary depending on which spur trails or alternate routes are followed.

The organization maintaining the IAT in New Brunswick, Sentiers NB Trails, closed in 2019, though efforts are underway to create a new trail group. In the meantime, please send any questions regarding the IAT in New Brunswick to the Maine IAT and we’ll do our best to answer them.