The Great Mound is a vibranium mine located underneath Mount Bashenga. It is the world's only known natural source of vibranium.
Millions of years ago, a vibranium meteorite hit Wakanda, causing the formation of Mount Bashenga.
In 1989, Ulysses Klaue mounted an operation to steal a cache of vibranium from Wakanda. Klaue's operation resulted in the death of numerous Wakandans.
- ^ T'Chaka, "Black Panther", Marvel Cinematic Universe. "There has been an attack. This man, Ulysses Klaue, stole a quarter ton of vibranium from us and triggered a bomb at the border to escape. Many lives were lost."