Hobart as in Tazmania, more than 2,000 miles away from Darwin? I'm willing to bet I can pick a 2k-mile straight line through the continental US that has more va

Hobart as in Tazmania, more than 2,000 miles away from Darwin? I'm willing to bet I can pick a 2k-mile straight line through the continental US that has more variation, but we would need a way to quantify it.