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
Pilot Mountain State Park A list of rules and regulations can be obtained from the park offices. Many miles of trail at Pilot Mountain State Park are open to hiking and horse back riding. Rules and regulations can be obtained at the park offices. The ecology of Pilot Mountain State Park is similar to the ecology of the Blue Ridge Mountains which are west of Surry County. Big Pinnacle is ringed by Catawba rhododendron which has pink blossoms in the spring, making the mountain appear as if it is wearing a "pink crown". Mountain laurel can be found throughout the park as can wild