Post Script... I arrived in Denver with ten minutes to dash through the airport to make my flight. And arrived in Edmonton 11 hours later than planned. However, have had a lovely, short but sweet visit with my friend and her new baby... and am now on the bus (with free wi-fi!! a service the Dulles Airport can not match) to Calgary. I'm talking clear and cold outside, rolling farmland and golden fields, and the promise of mountains on the horizon.