Col du Glandon can be approached from three sides: From La Chambre (north-east) the climb follows the D927. The ascent is 21.3 km (13.2 mi) long, climbing 1,472 m (4,829 ft) at an average gradient of 6.9%. The gradient increases as the road approaches the summit, with the last two kilometres exceeding 10% with stretches at 12%. From Saint Jean de Maurienne (east) the climb follows the D926. The ascent is 30 km long, climbing 1,521 m at an average gradient of 5.1%. From Barrage du Verney the climb follows the D526.