The 1920 North Dakota blizzard was a severe blizzard that killed 34 people from March 15 – March 18, 1920 in the state of North Dakota. High winds and an eight-inch snowfall stopped rail service in Bismarck, North Dakota and only one telephone line functioned between Fargo, North Dakota. and Minneapolis, Minnesota. Telephone service was out between Devils Lake, North Dakota and Fargo, North Dakota. It is considered one of the worst blizzards on record in North Dakota.