At the end of May, I returned to the British Museum from an exploratory research visit to an uninhabited national park on the island of Mona in Puerto Rico. My colleague Dr Alice Samson, McDonald Institute for Archaeological Research, and I had found more than we planned or expected when we flew to the Caribbean two weeks earlier. Alerted to the potential presence of archaeological sites dating to the pre-Columbian period (prior to AD 1492 when Christopher Columbus first arrived in the Americas) by National park manager Tony Nieves, we went to take a look. We discovered extensive pre-Columbian mining and artistic practices deep inside caves, with an astonishing abundance and diversity of new rock art including pictographs and finger-incised designs representing abstract, human and animal images.
Designs, which cover the walls and ceilings of hundreds of metres of the darkest caverns and tunnels across the island were executed by the application of pigments to cave walls, and by previously undocumented techniques such as incising and dragging fingers through the very soft, plaster-like deposit on the cave walls.
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