 Vermont Route 105 follows the Nulhegan River from source to mouth.The river is part of the Northern Forest Canoe Trail that extends from the Adirondack Mountains to Fort Kent, Maine.The North Branch of the Nulhegan rises at the mouth of Unknown Pond in the unincorporated area of Averys Gore, Vermont, at an elevation of in a saddle between Middle Mountain to the north and Bluff Mountain to the south.