Pit of Acheron

The Pit of Acheron is mostly the same as Abaddon; labyrinthian layout and an environment more or less identical to the River of Flame in Act IV. It has a golden treasure chest, too. Monsters one can find are Night Lord, Overlord and Ice Boar.

The entrance to The Pit of Acheron is a red portal on the Arreat Plateau.

Trivia

 * Acheron is one of the five rivers that leads to the underworld in Greek mythology.