The Twin Hills was a location on the forest moon of Endor which consisted of two large mountain peaks. The Twin Hills were known as the home of the Two-headed Gonster, a knowledgeable being that specialized in the capture and neutralization of monsters. The hills were a fair distance from Bright Tree Village, and Ewoks who planned to visit the Gonster did so with the use of hang gliders.

The young Ewoks, Wicket Wystri Warrick, Kneesaa a Jari Kintaka, Teebo, and Latara once traveled to the Twin Hills to speak with the Gonster about stopping the Raich.