There are 657.51 miles from Mason to Alva in west direction and 839 miles (1,350.24 kilometers) by car, following the I-90 W route.
Mason and Alva are 12 hours 55 mins far apart, if you drive non-stop .
This is the fastest route from Mason, WI to Alva, WY. The halfway point is Montrose, SD.
Please note the time difference between Mason, WI and Alva, WY is 1 hour. The current time in Mason is 7:55 pm and the current time in Alva is 6:55 pm.
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