References: |
- Deposit:: ROBERTS, J.K., 1928, VA. GEOLOGICAL SURVEY BULL. 29, P 133-134.
- Deposit:: EDMUNDSON, R.S., 1938, VA. GEOLOGICAL SURVEY BULL. 53, P. 54.
- Deposit:: LUTTRELL, G.W., 1966,VA. MIN. RES. REPORT 7, P.32-33
- Deposit:: WATSON, T L, 1907, SULPHATES, IN MINERAL RESOURCES OF VIRGINIA: LYNCHBURG, VIRGINIA, P 305-327.
- Deposit:: FURCRON, A.S., 1939, GEOLOGY AND MINERAL RESOURCES OF THE WARRENTON QUADRANGLE, VIRGINIA: VGS BULL. 54, P. 67-68.
- Deposit:: 1845 DIREXPL ? - OPENED MINE, RECOVERED BARITE
- Deposit:: 185? DIREXPL ? - MINED
- Deposit:: 1880 DIREXPL ? - MINED
- Deposit:: 189? DIREXPL ? - MINED
- Deposit:: 1903 DIREXPL ? - MINED
- Production:: LUTTRELL REF.
- Reserve-Resource:: ROBERTS REFERENCE
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