In a hole of the rock - “In a cleft of the rock.” As there are no fissured rocks in Babylonia, the place where Jeremiah hid the girdle must have been somewhere in the upper part of the river.
Related Commentaries of Jeremiah 13:4
Jeremiah 13:4
4 Take the girdle that thou hast got, which is upon thy loins, and arise, go to Euphrates, and hide it there in a hole of the rock.