The border on the east was the Dead Sea. It went north all the way to where the Jordan River enters the sea. The border on the north started at the bay of the Dead Sea. That’s where the Jordan River enters the sea.
Then it went from the Valley of Achor up to Debir. It turned north to Gilgal. Gilgal faces the Pass of Adummim south of the valley. The border continued along to the springs of En Shemesh. It came to an end at En Rogel.
Then it curved north. It went to En Shemesh. It continued on to Geliloth. Geliloth faces the Pass of Adummim. The border ran down to the Stone of Bohan, the son of Reuben.