This was planned to be my first ROM hack, but here goes:
A set of islands called the Trion Islands. Trion is the largest and the most populated; Trialo, Trionalin, and Triex are smaller and less populated; Raix is slightly bigger than the last three, is seperated from Trion by a huge valley, and is not populated at all.
I'll attach a pic.
Edit: WARNING! THIS IS A SIMPLE SKETCH AND IT SUCKS!