Pettit Lake Campground is located in a secluded area of the Sawtooth Mountains along the shore of Pettit Lake. Swimming, fishing, kayaking and canoeing are popular activities to do at Pettit Lake. There are 9 single-sites and 3 double-sites which are all first-come, first-serve. Tin Cup trailhead leading into the beautiful Sawtooth Wilderness is located at the north end of the campground. There is a day use picnic area adjacent to the campground. Personal watercraft are not allowed on Pettit Lake.