Our distances are not driving distances, but are calculated as a 'straight-line' (or point-to-point) distance. A straight line distance ignores things like rivers, canyons, lakes, et cetera - it's truly a line drawn from Point A (ie- Murdo) to Point B.Our distance measurements begin at a specific point in Murdo. The point we use is located at these GPS coordinates - Latitude: 43.8892, Longitude: -100.7140 In this case, the coordinates for Murdo have been provided by the Geographic Names Information System (GNIS).