Summer Getaway #2: An American Odyssey (with Ben McGrath)

The Ohio, Hudson, Mississippi, and Yellowstone — Dick Conant canoed them all. And then he disappeared. In his riveting new book, “Riverman,” journalist Ben McGrath tries to track down the man who may be the greatest American folk hero you’ve never heard of. --- Download the Next Big Idea app today at www.nextbigideaclub.com/app