En-Shemesh: A Spring Between the Territories of the Tribes of Judah and Benjamin
Source: Nav
Joshua 15:7
Then the border went up to Debir from the Valley of Achor, turning north to Gilgal, which faces the Ascent of Adummim south of the ravine. It continued along the waters of En-shemesh and came out at En-rogel.
Joshua 18:17
From there it curved northward and proceeded to En-shemesh and on to Geliloth facing the Ascent of Adummim, and continued down to the Stone of Bohan son of Reuben.