Note 498 — CANTO XVII.
James Romanes Sibbald translation
The bank: Not that which confines the brook but the inner limit of the Seventh Circle, from which the precipice sinks sheer into the Eighth, and to which the embankment by which the travellers have crossed the sand joins itself on. Virgil has beckoned Geryon to come to that part of the bank which adjoins the end of the causeway.