Cumberland CID, in partnership with the Atlanta Regional Commission (ARC), Cobb County and the Georgia Department of Transportation, opened the much anticipated one-mile extension of the Bob Callan Trail in a beautiful ribbon-cutting ceremony on July 25, 2019. The trail — part of a 60-mile network of multi-use trails — is three miles of pristine connection to national parkland at the Chattahoochee River National Recreation Area, and is a hidden gem within the Cumberland area.