Our distances are not driving distances, but are calculated as a '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- Selfridge) to Point B.Our distance measurements begin at a specific point in Selfridge. The point we use is located at these GPS coordinates - Latitude: 46.0419, Longitude: -100.9246 In this case, the coordinates for Selfridge have been provided by the Geographic Names Information System (GNIS).