 The third stage of the race was split into two distinctive sections ; the first portion of the 167 km ( 103 @.@ 8 mi ) -long stage from the start town of Ambérieu @-@ en @-@ Bugey was predominantly flat as the race headed towards the feeding zone in the commune of Lancié . From there , the route moved uphill towards the first of the day 's two categorised climbs . The Col des Echarmeaux was a long , but rolling climb of 3 % over 10 @.@ 5 km ( 6 @.@ 5 mi ) , with a steady descent towards the intermediate sprint point , coming 25 km ( 15 @.@ 5 mi ) before the finish , in the commune of Cublize . The route descended a little further , before the Col des Sauvages , a third @-@ category climb at an average gradient over 4 km ( 2 @.@ 5 mi ) of 5 @.@ 5 % . The summit of the climb came 10 km ( 6 @.@ 2 mi ) before the finish into Tarare ; the finish was technical , with two tight left @-@ hand turns in the final kilometre . 
