>>518599091
It's located in the Valley of Hinnom/Ben Hinnom ("son of Hinnom," likely referring to the Hinnom family who once owned the land) which is associated with the biblical term "Azazel" in relation to the scapegoat ceremony on Yom Kippur, as the high priest would cast the goat into the abyss from a location called Mount Azazel.

The name is the source of the Greek term Gehenna.