The Ruby Mines operated between September 1975 and February 1985. The four mines were contiguous and were mined by underground methods. Operating plans for Section 26, where Ruby Mines No. 4 is located, indicate the ore
body would be developed by a modified room and pillar mining system (WNI, 1979a, b). Ore production at Ruby Mines Nos. 1 and 2 was estimated at 495,360 tons between 1976 and 1981. Ore production at Ruby Mines Nos. 3 and 4 from 1980 to 1982 was reported at 223,985 tons and was estimated in 1984 and 1985 at 295,000 tons. Ores from Ruby Mines Nos. 2 and 4 were transported through Ruby Mines Nos. 1 and 3, respectively. Ore from the mines was transported offsite for processing. Waste rock generated at the mines was placed outside the adits of
Ruby Mines Nos. 1 and 3.
