Tropic mina.. Idaho Springs COLORADO Daily shipments to Argo. R. M. News. Jan. 13, 1881 p.8 c.2 Accident to miner. R. M. News. Jan. 20, 1881 p.2 c.3 Operating,. Seaton mt. R. M. News. Feb. 4, 1881 p.3 c.2 Exhibit, Natl. expos., Denver. R. Y. News. Aug. 28, 1882 p.3 c.2 Development; assays. R. M. News. Aug. 29,1874 p.4 c.3 Activities. R. M. News. Sept. 3,1881 p.2 c.2