Stone Mountain Freeway Gwinnett County and have a partial interchange with Park Place Boulevard and Rockbridge Road. Just to the east of this interchange, the freeway ends and US 78/SR 10 continue to the east, locally known as Stone Mountain Highway. West of I-285, the speed limit is . East of the interchange with I-285, the limit rises to . Unlike Georgia's Interstate highways, the highway still has actual sequential exit numbers, rather than being mileage-based. There is no exit 6, which makes the exit numbering non-sequential. All of Stone Mountain Freeway is included as part of the National Highway System, a system
Roan Mountain State Park Roan Mountain State Park Roan Mountain State Park is a Tennessee state park in Carter County, in Northeast Tennessee. It is close to the Tennessee-North Carolina border and near the community of Roan Mountain, Tennessee. Situated in the Blue Ridge of the Appalachian Mountains, the park preserves of mostly hardwood forest. The park is in close proximity to Roan Mountain and the Appalachian Trail, both of which are owned and managed by the US Forest Service. Roan Mountain State Park hosts a variety of outdoor activities including hiking, mountain biking, camping, cross-country skiing (during snowy, winter months), fishing, and swimming.