Article Photos: State-by-state look at frigid blast hitting US 6/36

Ground crews working for the State of Montana blow snow from the sidewalks around the Original Governor's Mansion Wednesday Dec. 4, 2013 in Helena, Montana. Helena and the rest of the state prepare for a long and cold weather pattern that will see the temperatures barely make it to the single digits and have highs in the negatives toward the end of the week. (AP Photo/The Independent Record, Eliza Wiley)