Book of Enoch (1 Enoch) 26:3
And I saw towards the east another mountain higher than this, and between them a deep and narrow ravine: in it also ran a stream ⌈underneath⌉ the mountain.
Background and history of Book of Enoch (1 Enoch), and issues with this book.
R. H. Charles, The Book of Enoch (London: SPCK, 1917), public domain. The verse text is the English Wikisource transcription of that translation. Charles’s editorial signs are kept. He rearranges some verses in chapters 5, 39, 90, 91, and 106, so those chapters are not a straight 1, 2, 3 sequence.