Our distances are not driving distances, but are calculated as a 'straight-line' (or point-to-point) distance. A straight line distance ignores obstructions like rivers, canyons, lakes, et cetera - it's truly a line from Point A (ie- Dunbar) to Point B.Our distance measurements begin at a specific point in Dunbar. The point we use is located at these GPS coordinates - Latitude: 34.4587, Longitude: -95.5605 In this case, the coordinates for Dunbar have been provided by the Geographic Names Information System (GNIS).