Down the Great Unknown: John Wesley Powell's 1869 Journey of Discovery and Tragedy Through the Grand Canyon By Dolnick, Edward Books / Hardcover Books ISBN: 096533418X / Publisher: Example Product Manufacturer, September 2001 Price Starting at $9.60 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Like New High Quality! With Dust Jacket Like New condition. Very Good dust jacket. A near perfect copy that may have very minor cosmetic defects. $9.60 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for Down the Great Unknown: John Wesley Powell's 1869 Journey of Discovery and Tragedy Through the Grand Canyon