Situated at the foot of the Mountains of the Exalted, close to Colony One on Ylesia, was the Altar of Promises. This was the site where the t'landa Til carried out their false religious ceremonies. In the time of the Yuuzhan Vong War, Thrackan Sal-Solo proposed building a temple dedicated to Yun-Yammka in the vicinity, speculating whether the t'landa Til might have an influence on the Yuuzhan Vong.