Charles Ellicott Commentary Nehemiah 2:13

"And I went out by night by the valley gate, even toward the jackal`s well, and to the dung gate, and viewed the walls of Jerusalem, which were broken down, and the gates thereof were consumed with fire." — Nehemiah 2:13 (ASV)

The gate of the valley, opening on Hinnom, to the south of the city. Nehemiah passed by “the dragon well,” nowhere else mentioned, and not now to be traced, and surveyed the ruins from the “dung port,” from where offal was taken to the valley of Hinnom.