Next year 's 174 - kilometre ride will start in Pau .
Next year 's 174 - kilometre ride head down to the Col de Marie - Blanque , which last featured on the Etape route in 2005 .
Next year 's 174 - kilometre ride will start in Pau and head down to the Col de Marie - Blanque , which last featured on the Etape route in 2005 .