Mackinac Island Police say two women died when the snowmobile they were riding fell off the West Bluff. Karen Schwarck, from Mackinac Island and her sister Edith Bonno from Canton went missing last night. Schwarck's husband called police when the women did not come back from going out and shooting photos. They were found early this morning at the bottom of a steep hill on West Bluff Drive. Northern Michigan's News Leader has a crew on Mackinac Island working to bring you a full report on the deadly accident.