Will Bagley has written about overland emigration, frontier violence, railroads, mining, computers, and Utah and the Mormons. He has appeared in dozens of films, including the American Experience episode of “The Mormons” and the Discovery Channel’s recent “Gold Fever.” Between 2000 and 2004, The Salt Lake Tribune published more than 200 of his columns and articles. Bagley is editor of the Arthur H. Clark Company’s 16-volume documentary series, Kingdom in the West: The Mormons and the American Frontier. He has won the Western Heritage Award (the Wrangler), three Spur Awards from the Western Writers of America, and Best Book awards from the Western History Association, the Denver Public Library, and Westerners International. His fifteenth book, South Pass: Gateway to a Continent, comes out this month.