|Easton's Bible Dictionary|
Fertile; light soil, a city somewhere "in the wilderness" of Judah (Joshua 15:62), probably near Engedi.
Int. Standard Bible Encyclopedia
nib'-shan (ha-nibhshan; Codex Vaticanus Naphlazon; Codex Alexandrinus Nebsan): A city in the Judean wilderness named between Secacah and the City of Salt (Joshua 15:62). Eusebius, Onomasticon, knows the place but gives no clue to its identification. The site has not been recovered. Wellhausen suggests the emendation of nibhshan to kibhshan, "furnace" (Proleg. 2,344).
Nibshan (1 Occurrence)
Joshua 15:62 Nibshan, the City of Salt, and En Gedi; six cities with their villages. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)