Micah Middaugh, Trevor Hobbs, and Andréa Moreno-Beals are Breathe Owl Breathe, out of Michigan. Swimming (linked below) may be deceptively simple, but def easy to get into. A few bleeps and squeaks more than their earlier stuff??
Found them through the awesome trail mix series of mix tapes over at Cold Splinters. Download them all then hit shuffle. Not all folky/country campfire music, but quite a bit.