'Extreme' in the Bible

When Balak heard that Balaam was coming, he went out to meet him at the city of Moab, which is on the Arnon border, at the extreme end of the border.

Then Balak said to him, “Please come with me to another place from where you may see them, although you will only see the extreme end of them and will not see all of them; and curse them for me from there.”