Our distances are not driving distances, but are calculated as a 'straight-line' (or point-to-point) distance starting from Herendeen Bay. A straight line distance ignores things like rivers, canyons, lakes, et cetera - it's truly a line drawn from Point A (ie- Herendeen Bay) to Point B.
Our distance measurements begin at a specific point in Herendeen Bay. The point that we are using is located at these GPS coordinates - Latitude: 55.7681, Longitude: -160.6858 [Map]. In this case, the coordinates for Herendeen Bay have been provided by the Geographic Names Information System (GNIS).