After twenty years of effort by the Heritage Trail Partners, and Arkansas Senator John Boozman, in December of 2022, the US Congress established this route as The Butterfield National Historic Trail. That historic decision brings up the task of determining exactly where that trail crossed Faulkner County. This book outlines the two year process the author followed to determine its exact route across Faulkner County. Between September, 1858 and March of 1861, passengers and mail carried by the Overland Mail Company departed Memphis twice a week. Passing through Des Arc, Arkansas they crossed Faulkner County about 520 times on their journey toward Fort Smith. At Fort Smith, after merging with the stagecoach from St. Louis, mail and passengers traveled day and night toward San Francisco. Dr. Bob Crossman graduated from Russellville High School 50 years ago, and has lived Conway the past 35 years. His wife, Marcia Swain, is a native of Morrilton. They will celebrate their 52nd anniversary this year.Bob is the author of seven books on the Butterfield Overland National Historic Trail.He has thirteen books that are now in print, and has sold over 35,000 copies of his books on Amazon and through dozens of other booksellers.He is a member of the Butterfield Overland National Historic Trail Association, Oregon California Trails Association, Arkansas Historical Association, Faulkner County Historical Society, and the Shiloh Museum of Ozark History.Dr. Crossman received a B.A. from Hendrix College in Conway, Arkansas, and received graduate and post-graduate degrees from SMU in Dallas, Texas.