Charles Ellicott Commentary Daniel 3:1

"Nebuchadnezzar the king made an image of gold, whose height was threescore cubits, and the breadth thereof six cubits: he set it up in the plain of Dura, in the province of Babylon." — Daniel 3:1 (ASV)

An image. —If this image was made after the manner described (Isaiah 44:9–20), the body was formed of wood, and the whole, when properly shaped, was covered with thin plates of gold. As the height of the whole is disproportionate to the width, it is probable that the height of the pedestal on which the image stood is included under the sixty cubits.

Plain of Dura. —The older commentators identified this place with various sites, some north, some east of Babylon. Recent discoveries place it nearer to Babylon, in a place still called by a similar name.