Summary narrative of an exploratory expedition to the sources of the Mississippi River, in 1820 resumed and completed, by the discovery of its origin in Itasca Lake, in 1832. By authority of the United States. With appendices. This book, "Summary narrative of an exploratory expedition to the sources of the Mississippi River in 1820," by Henry Rowe Schoolcraft, is a replication of a book originally published before 1855. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible.