(G. Del Olmo Lette). “For the Caananites of Ugarit, the Bashan region, or a part of it, clearly represented ‘Hell’, the celestial and infernal abode of their deified dead kings” (162). Further, Bashan is the land of the Rephaim (Dt. 3.13). The author gives a good analysis of the contrast between Bashan and Mt Zion in Psalm 68, a contrast that is often lost in modern translations.
In Psalm 68.15 Bashan is the har elohim, which is usually translated as the mountain of God. But that’s incoherent in the text. It is being contrasted with Zion, so it would then read,
“Why do you look with hatred, O mountain of God, at the mountain of God?”
But if elohim is taken as a plural, then it makes perfect sense:
“Why do you look with hatred, O mountain of gods, at the mountain of God?” That’s an actual contrast.“
Logical Investigations 