Our distances are not driving distances, but are calculated as a 'straight-line' distance from Drift River. A straight line distance ignores obstructions like rivers, canyons, lakes, et cetera - it's truly a line drawn from Point A (ie- Drift River) to Point B.
Our distance measurements begin at a specific point in Drift River. The point that we are using is located at these GPS coordinates - Latitude: 60.5917, Longitude: -152.1611 [Map]. In this case, the coordinates for Drift River have been provided by the Geographic Names Information System (GNIS).