Amazon offers the Bearpaw Women's Rosie Snow Boots in three colors for $55.48 with free shipping. That's the lowest total price we could find by $10. They're available in sizes 5 to 12, although not in all size/color combinations.

Update: It's available in Hickory for $48.19 with free shipping. Black, Chocolate, and Dark Honey are just a few bucks more.