An overview of directions for entering St. Lawrence County.
From Albany: Take I-87 North to Exit 23 towards Warrensburg/Diamond Point. Turn left onto Diamond Point Road and then a right onto Rte 9. Continue for about 4.2 miles on Rte 9 and then take a left onto Rte 28. Continue on Rte 28 until you reach Blue Mountain Lake. Take a right hand turn onto Rte 28N and continue on until you reach Long Lake. Take a left hand turn onto Rte 30 and continue until you have reached Tupper Lake. Take Rte 3 West, where you enter St. Lawrence County in Piercefield, located in the Adirondack Park.
From Syracuse: Take I-81 North to Exit 48A toward I-781. Continue onto I-781 for about 4 miles, and then take exit 4 for U.S. Highway 11. Keep left at the fork and merge onto U.S. Highway 11 North where you will enter St. Lawrence County near Sommerville. Continue on U.S. Highway 11 North and you will reach Canton, the seat of St. Lawrence County.
From Ottawa: Off of the ON-417, take ON-416 South for approximately 71km to Exit 1 toward ON-401/ON-16. Continue onto ON-16 for about 1.5km, then turn right (signs for State Highway 37/Bridge to U.S.A). Continue on to Ogdensburg-Prescott International Bridge where you enter St. Lawrence County in Ogdensburg, NY.
From Burlington, VT:Take I-89 to VT-314 North in South Hero. Follow VT-314 North to Cumberland Head- Grand Isle (follow signs to ferry). Take Cumberland Head-grand Isle Ferry to Plattsburg, NY. Once you get off the ferry, continue on 314 until you reach the Exit for I-87 South. Continue down I-87 South until you reach Rte 347. Stay on Rte 347 for approximately 50 miles until you reach Rte 11 in Chateaugay. Take a left onto Rte 11 and continue on through Malone until you reach Potsdam, located in St. Lawrence County.