EAST PACIFIC TUNNEL NO. 4 Beaver District. Broadwater County. Minerals Yearbook [No Date]. Lead ore and lead-zinc ore shipped to smelter. (Lead, zinc, gold).
WPA, "East Pacific Tunnel No. 4" (2021). Minerals Yearbook, All. 309.
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East Pacific Tunnel No. 4, Beaver District, Broadwater County, lead, zinc, gold