- Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District)
| Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 233. |
Searles Lake, San Bernardino County, California, USA