For other uses of see El Dorado (disambiguation). El Dorado was a fabled city made of gold located on the planet Earth. In 2268, Doctor Leonard McCoy compared the legends surrounding the existence of the planet Sanctuary to those about Atlantis and El Dorado. (TOS novel: Sanctuary) External link[edit | edit source] El Dorado article at Wikipedia, the free encyclopedia. Retrieved from "https://memory-beta.fandom.com/wiki/El_Dorado?oldid=507931" Categories: Memory Beta articles sourced from novels Mythology Earth settlements Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.