(Double Irish Chain, TN-86-02) SW of Erwin, Unicoi County, TN. TN36 (Temple Hill Rd.) S. (curves SW) 3.4 miles from jct with I26 exit 40 on the S. side of Erwin to the quilt on the NW side of the road at 3333. Double D Roost Campground. (N36 05.345 W82 28.996) Photos by Jack & June Schmidt 6-15-18.