'Upper' in the Bible

Achsah answered, “Give me a blessing; since you have given me the [dry] land of the Negev (South country), give me springs of water, too.” So he gave her the upper springs and the lower springs.

Now this was the territory of the sons of Ephraim according to their families: on the east side the border of their inheritance was Ataroth-addar, as far as upper Beth-horon.