Hi MintyPip,

I cannot give a precise formula, because those shapefiles were created with shapefiles editor, but an approximate one can be found by computing the offset of a known point in Alaska in the World shapefiles and its position in the USA shapefiles. A have taken from the World shapefiles what seems to me the Alaska's center: Latitude = 65.738960560638, Longitude = -153.557349914081 and in the USA shapefiles its position is: Latitude: 26,2286951558063, Longitude=-112,622362091846

To export those coordinates I have used the following code:

1. Register for XamMap's MapMouseLeftButtonDown

2. Code behind:

private void xamMap_MapMouseLeftButtonDown(object sender, MapMouseButtonEventArgs e)
{
 Point mapPosition = xamMap.Viewport.RootCanvas.RenderTransform.Inverse.Transform(e.Position);
 Point geoPosition = xamMap.MapProjection.UnprojectFromMap(mapPosition);

 Debug.WriteLine(geoPosition);
}