Sherman is the county seat of Grayson and is a nice little stop off. Kelly Square - is a wonderfully 'old feel' downtown shopping mall. Walking through the doors, you are taken back in time and surrounded by antiques and memorabilia. There is also a restaurant on the 2nd level.
Denison is only 5 miles south east of Pottsboro in Grayson County which borders Oklahoma. Dwight Eisenhower's (34th President) Birth House is probably the most popular attraction. The M-K-T Katy Depot holds an important back to Denisons history. It also houses the Red River Railway Museum.
Durant lies in south-central Oklahoma only ten miles from Lake Texoma. If you travel up US Hwy 75 you will come to the border.