National mining and industrial exposition. Denver. Action of Pitkin co.; paper comments, districts; list. R.M.News. June 1,1882 p.3 c.2 Sherman min. di st.; papers comment, dists; list. j4.M.News. June 3,1882 p.7 c.l Action taken in min. dists; list. R.M.News. June 6,1882 p.7 c.2 Progress of preparations for a display; paper comments, dists; list. R.M.News. June 8,1882 p.4 c.3 Preparation of ore samples; list. R.M.News. June 8,1882 p.5 c.l Benefits derived from exhibits; preparations, dists;list. R. .News. June 10,1882 p.2 c.2