Sugar Loaf Mountain is part of the Poteau Mountains. Most of it is on the AR side. I have a son that lives at the foot of the Mt. & he is in Sebastian Co.. AR. Surrounding towns are Midland, AR & Hartford, AR. They are both in Sebastian Co. AR. What few people that live on the Mt. Their children go to school at Hartford, AR There is also a Sugar Loaf Lake. It is also on the AR side. Barbara