Azmon in the Bible

And your border shall turn from the south to the ascent of Akrabbim, and pass on to Zin: and the going forth thereof shall be from the south to Kadeshbarnea, and shall go on to Hazaraddar, and pass on to Azmon:

And the border shall fetch a compass from Azmon unto the river of Egypt, and the goings out of it shall be at the sea.

It proceeded to Azmon and to the Brook of Egypt and so the border ended at the Mediterranean Sea. This is your southern border.