Dec 20. After trying to get up the hill in our two-wheel drive Matrix, and failing, we went looking for chains. None could be found in Breckenridge, but a man directed us to either NAPA Parts or Wal Mart in Frisco. At NAPA we discovered something relatively new, called "socks." Aaron is slipping one onto the wheel. With these socks we made it up the hill, but our Matrix remained parked throughout our stay.