If you ask your good friend Google, you can get a bit confused. some sources say 149 kilometres - others 176... or 160. It all depends on what you refer to as the Gudenå. For example the first narrow stretch after the sources of the Gudenå and its outlet in Randers Fjord.

The strech that you can navigate in a canoe is 140 kilometres. And the one-way traffic stretch in the Coastal Land between Tørring and The Monastery Mill is 41 kilometres.

Tørring – Åstedbro: 14 km
Åstedbro – Bredstenbro: 6 km
Bredstenbro – Vestbirk Hydropower Plantrk: 7 km
Vestbirk Hydropower Plant – Voervadsbro: 7 km
Voervadsbro – The Monastery Mill/Lake Mossø: 6 km
The Monastery Mill/Lake Mossø – Ry: 10 km