Wei-Assipu-tepui, also known as Little Roraima or Roraimita, is a minor tepui of the Eastern Tepuis chain. It lies just off the northeastern flank of Roraima-tepui, directly on the border between Brazil and the disputed Guayana Esequiba territory, claimed by Venezuela but controlled by Guyana, and very close to the tripoint of all three countries. The mountain is known for its extensive cave systems, with one extending for over a kilometre.