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
South Mountain State Park Waverton Cliffs. The park also contains part of the South Mountain Battlefield. Camping is permitted at shelters and backpackers campgrounds off the AT. The park also has two hunting areas: Black Rock Hunting Lands and Lambs Knoll Hunting Lands. South Mountain State Park South Mountain State Park is a public recreation area that runs for nearly the entire length of South Mountain through Washington and Frederick counties in Maryland. The state park is contiguous with several other national, state and local parks on the mountain, including the Chesapeake and Ohio Canal National Historical Park, Gathland State Park, Washington Monument State