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Topic
- Mines and mineral resources 44
- Mining engineering 21
- Gold mines and mining 12
- Gold 12
- Hydraulic mining 9
- Buildings 7
- Minerals 6
- Metals--Refining 4
- Aerial tramways 3
- Cranes, derricks, etc 3
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Local Collection Name
- Angelus Studio Photographs 44
Format
- image/tiff 44
Institution
- University of Oregon 44