Our distances are not driving distances, but are calculated as a 'straight-line' (or point-to-point) distance that begins in Libbyville. A straight line distance ignores things like rivers, canyons, lakes, et cetera - it's truly a line drawn from Point A (ie- Libbyville) to Point B.
Our distance measurements begin at a specific point in Libbyville. The point that we are using is located at these GPS coordinates - Latitude: 58.7778, Longitude: -157.0531 [Map]. In this case, the coordinates for Libbyville have been provided by the Geographic Names Information System (GNIS).