Smooth; bald, a hill at the southern extremity of Canaan (Josh. 11:17). It is referred to as if it were a landmark in that direction, being prominent and conspicuous from a distance. It has by some been identified with the modern Jebel el-Madura, on the south frontier of Judah, between the south end of the Dead Sea and the Wady Gaian.
Mountain ; http://www.bibleorigins.net/MountHalakGebelHalaqMap.html
KJB=‘mount Halak’ ESV=‘Mount Halak’
Grateful thanks to Viz.Bible for this data.