And the border went up toward Debir from the valley of Achor, and so northward, looking toward Gilgal, that is before the going up to Adummim, which is on the south side of the river: and the border passed toward the waters of Enshemesh, and the goings out thereof were at Enrogel: The valley of Achor - Debir mentioned in this verse is unknown. The valley of Achor had its name from the punishment of Achan. See the account, Joshua 7:24 (note), etc.
En-shemesh - The fountain of the sun; it was eastward of Jerusalem, on the confines of Judah and Benjamin.