Northbound With Theo: A Man and His Dog Thru-Hike the Appalachian Trail at Ages 75 and 8EbookNorthbound With Theo: A Man and His Dog Thru-Hike the Appalachian Trail at Ages 75 and 8bySoren WestRating: 0 out of 5 stars0 ratingsSave Northbound With Theo: A Man and His Dog Thru-Hike the Appalachian Trail at Ages 75 and 8 for later