| <1> | Our distances are not driving distances, but are calculated as a 'straight-line' (or 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- Butte - Silver Bow) to Point B.Our distance measurements begin at a specific point in Butte - Silver Bow.  The point we use is located at these GPS coordinates - Latitude: 45.9018, Longitude: -112.6570        In this case, the coordinates for Butte - Silver Bow have been provided by the Geographic Names Information System (GNIS). |