Harry Thurston Peck, Harpers Dictionary of Classical Antiquities (1898)

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Rhodănus

Now the Rhône. One of the chief rivers of Gaul, which rises in Mount Adulas, on the Pennine Alps, not far from the sources of the Rhine, flows first in a westerly direction, and, after passing through the Lacus Lemanus, turns to the south, passes by the towns of Lugdunum, Vienna, Avenio, and Arelaté, receives several tributaries, and finally falls by several mouths into the Sinus Gallicus in the Mediterranean. The Rhône is a very rapid river, and its upward navigation is therefore difficult, though it is navigable for large vessels as high as Lugdunum (Lyons), and by means of the Arar still farther north.