'Valley gate' in the Bible

Moreover Uzziah built towers in Jerusalem at the corner gate, and at the valley gate, and at the turning [of the wall], and fortified them.

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 of it were consumed with fire.

Then I went up in the night by the brook, and viewed the wall. And I turned back, and entered by the valley gate, and so returned.

Hanun, and the inhabitants of Zanoah, repaired the valley gate. They built it, and set up the doors of it, the bolts of it, and the bars of it, and a thousand cubits of the wall to the dung gate.