Tropic mine. Idaho Springs COLORADO Description; owners. R.M.News.June 29,1879 p.1 c.3 Mentioned. R.?4.News.June _22,1880 p.3 c.1 On Sea.ton hill. R. M.News.Sept.18,1880 p.2 c.2 Sinking shaft up Platte CANON CANYON 1880 p.2 c.2 Activities, Seaton interests. R.M.News.Nov.27,1880 p.3 c.2