St. Lawrence County is located in the northern part of the state of New York. It is the largest county in the state by area, covering approximately 2,821 square miles. The county is known for its beautiful landscapes, including the St. Lawrence River, which forms part of the border with Canada. The county seat is Canton, and other notable towns include Ogdensburg and Massena. St. Lawrence County is home to several parks and recreational areas, making it a popular destination for outdoor activities such as hiking, fishing, and snowmobiling. The region also has a rich history, with various cultural sites and museums.