Siderite from Boulder Creek; Purkeypile Boulder Creek; Boulder Creek Tin Lode; Purkey Tin; Wonder; Scenic; Basin; Lead Prospect, McGrath Mining District, Denali Borough, Alaska, USA
USA | |
| [var. Manganese-bearing Siderite] (2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey |