Mount of the Amalekites
Easton's Dictionary
A place near Pirathon (q.v.), in the tribe of Ephraim (Judg. 12:15).
International Standard Bible Encyclopedia
("Hill-country of the Amalekites" (Jud 12:15)): The Amalekites are usually connected with the valley (Nu 14:25; Jud 7:12), but appear from this passage to have had a settlement in the hill country of Ephraim.
See AMALEKITE.