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
Bradbury Mountain State Park its size offers panoramic views that make the park one of the more popular ones in the state. The underlying material of granite and pegmatite is exposed at the summit. The park's multi-use trails are used for hiking, snowmobiling and horseback riding. Most trails in the park are to open mountain bikers. Hiking is popular during all seasons, including winter. Bradbury Mountain State Park Bradbury Mountain State Park is a public recreation area in the town of Pownal, Cumberland County, Maine, managed by the Department of Agriculture, Conservation and Forestry. The state park covers . The park was created in