Feb. 28 (UPI) -- Longmire Days -- the annual festival celebrating Craig Johnson's best-selling Sheriff Walt Longmire books and the beloved TV show it inspired -- is set to take place this July 17-20 in Buffalo, Wyo. Johnson and former series cast members Robert Taylor , Louanne Stephens, A. Martinez, John Bishop and Derek Phillips have been booked to attend the event. Advertisement "In an exciting development, our event committee is working on some new ideas for this year's event. We can't wait