And I tried to see the region or place from which the mountain was carved, but I could not: Ezra could not see the place from which the mountain was carved because the source was in heaven, not on earth. Good News Bible has a good model for this verse. Another possible one is:

• I tried to see from what region he had taken this mountain, but I could not.

Quoted with permission from Bullard, Roger A. and Hatton, Howard A. A Handbook on 1-2 Esdras. (UBS Helps for Translators). Miami: UBS, 2019. For this and other handbooks for translators see here.