The book is made up of a series of letters written during the author’s journey, and are very literate and readable. He does a fine job of recording what he observes, but doesn’t limit himself to that. He also writes about many other topics. For example, during the part of the book in which he is traveling on and around Lake St. Lawrence, he provides considerable information about economic activity in the region.

It took Darby three months and 187 pages to reach Detroit. About 20 pages are then devoted to Detroit and the nearby area before he starts his return voyage.