Ercos

The Klims proclaiming to name a mountain "Doctor Mountain" to remember the Doctor. (COMIC: The Dalek Revenge)

Ercos was a planet in the Relram system, inhabited by the Klims. The Daleks invaded it and a Dalek camp was set up. At the will of the Time Lords, the Fourth Doctor and Sarah Jane Smith arrived on the planet and stopped the Daleks from using the Dalek driller to destroy Earth. Ercos was the Doctor's favourite planet. (COMIC: The Dalek Revenge)