Ivanhoe Mine (Browne's Lake Mine), Lost Creek District, Beaverhead Co., Montana, USAA mine working a contact metamorphic deposit in metamorphosed limestone of the Pennsylvannian Amsden Formation. There were both Surface and underground workings.
Ref: Montana Bureau of Mines and Gology Special Publication 75, 1977
| 'Amphibole Group'|
22 entries listed. 15 valid minerals.
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Myers, W. Bradley (1952) Geology and mineral deposits of the northwest quarter of Willis quadrangle and adjacent Browns Lake area, Beaverhead County, Montana. USGS Open File Report 52-105.
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