Rana Mas Square was a public square in Umbarra Plaza within the Duros Sector of the moon Nar Shaddaa during the Cold War between the Galactic Republic and the Sith Empire. The square was named after the famed Duros queen Rana Mas Trehalt, and during the Cold War agents of the Gen'Dai known as the Flame strung up the body of Imperial operative Madel Felth's undercover agent in the square as a trap.