Our distances are not driving distances, but are calculated as a 'straight-line' (or point-to-point) distance from Nushagak. A straight line distance ignores things like rivers, canyons, lakes, et cetera - it's truly a line from Point A (ie- Nushagak) to Point B.
Our distance measurements begin at a specific point in Nushagak. The point that we are using is located at these GPS coordinates - Latitude: 58.9481, Longitude: -158.4922 [Map]. In this case, the coordinates for Nushagak have been provided by the Geographic Names Information System (GNIS).