| References: |
- Deposit:: PHALEN, W.C., 1913, SULPHUR, PYRITE, AND SULPHURIC ACID, IN U.S. GEOLOGICAL SURVEY, MINERAL RESOURCES OF THE UNITED STATES, CALENDAR YEAR 1912, PART 2 - NONMETALS: P. 931-953.
- Deposit:: WATSON, T.L., 1920, VIRGINIA, IN SMITH, P.S., SULPHUR, PYRITES AND SULPHURIC ACID, IN U.S. GEOLOGICAL SURVEY, MINERAL RESOURCES OF THE UNITED STATES, 1917, PART 2 - NONMETALS: P. 51-55.
- Deposit:: 1910 DIREXPL SHAFT SUNK
- Deposit:: 1918 DIREXPL ADDITIONAL EXPLORATION CONDUCTED
- Production:: PHALEN (1913)
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