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Marble Caves, Chile. - Our Planet
Marble Caves are unusual geological formations, also known as "Marble Chapel" and "Marble Cathedral" located at the center of the General Carrera Lake and representing a group of caverns, columns and tunnels formed in monoliths of marble. Marble Caves have been formed by wave action over the last 6,200 years. General Carrera Lake (Chilean side) or Lake Buenos Aires (Argentine side) is a lake located in Patagonia and shared by Argentina and Chile. Both names are internationally accepted.