Mark Twain left Cleveland, Ohio July 17 on board the SS Northland. They sailed across Lake Erie to the Detroit River, across Lake St Clair and along the St. Clair River. July 18th they crossed Lake Huron and landed in Sault Ste. Marie. Here he gave his third lecture of the tour. On July 19th, they took the sreamboat F.S. Faxton to Mackinac Island for a lecture in the Grand Hotel. On July 20th, Twain and Major Pond traveled to Petoskey, Michigan by boat and train, the Northern Arrow. Petoskey is the site of the extermination of the last major breeding colony of passenger pigeons, in 1878. The last passenger pigeon seen in the state was in 1889. Departing Petoskey July 21, they returned to Mackinac Island where they all boarded the SS Northwest, sailed across Lake Superior, through the Keweenaw Peninsula to Duluth, Minnesota. 

https://twainsgeography.com/content/section-2-great-lakes-region