 After the Spanish Conquest, the ruins of San Andrés lay within a colonial estate dedicated to cattle and indigo production.The site was buried due to the eruption of the Playón volcano in 1658 AD, preserving the Colonial indigo production almost intact.In 1996, the Government of El Salvador inaugurated the Archaeological Park of San Andrés, where the visitor can climb the pyramids, see the indigo production area, and visit the site museum.