EMERALD Barker District. Judith Basin County. Minerals Yearbook 1934. Sta. App. Page 398. Shipped one car of lead-zinc ore for milling and one car of lead ore for smelting in 1933.
WPA, "Emerald" (1934). Minerals Yearbook, All. 293.
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Emerald, Barker District, Judith Basin County, lead, zinc