References: |
- Deposit:: MONROE, W.H., AND PEASE, M.H., 1962, PRELIMINARY GEOLOGIC MAP OF THE BAYAMON QUADRANGLE, PUERTO RICO: U.S. GEOLOGICAL SURVEY MISCELLANEOUS GEOLOGIC INVESTIGATIONS MAP I-347, SCALE 1:20,000.
- Deposit:: MONROE, W.H., 1973, GEOLOGIC MAP OF THE BAYAMON QUADRANGLE, PUERTO RICO: U.S. GEOLOGICAL SURVEY MISCELLANEOUS GEOLOGIC INVESTIGATIONS MAP I-751, SCALE 1:20,000.
- Deposit:: FILES OF THE CORTEZA TERRESTRE (SURFACE MINING PERMITS OFFICE), PUERTO RICO DEPARTMENT OF NATURAL RESOURCES, 1991.
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