Our distances are not driving distances, but are calculated as a 'straight-line' distance from Rocky Hollow. A straight line distance ignores obstructions like rivers, canyons, lakes, et cetera - it's truly a line from Point A (ie- Rocky Hollow) to Point B.
Our distance measurements begin at a specific point in Rocky Hollow. The point that we are using is located at these GPS coordinates - Latitude: 33.7815, Longitude: -87.0847 [Map]. In this case, the coordinates for Rocky Hollow have been provided by the Geographic Names Information System (GNIS).