Death Mountain Chasm
Tears of the Kingdom
The Chasm is located in the mouth of Death Mountain. As part of the Yunobo of Goron City main quest, Link will travel to the peak of Death Mountain where he will battle with Moragia. After defeating Moragia, Link can dive down into the Death Mountain Chasm to reach the Depths. As soon as he drops down into the depths, he can find the Mustis Lightroot.