Northwest Crevasse
The Northwest Crevasse was a deep, partially unexplored region on the prison colony mining asteroid of Tars Lamora. It was prone to sudden cave-ins, and miners sent there were required to go in pairs to prevent injury.

In 2383, Dal R'El was sent to the Northwest Crevasse in search of a fugitive known as Zero. Instead, he and Rok-Tahk caused a partial cave-in and uncovered a hidden chamber within a chimerium cave. Within, they discovered the abandoned  and used it to escape the colony. ()

The ship had been hidden there for several decades, and was the reason The Diviner was mining the asteroid. ()

Geography