Rocky Valley Halt is an intermediate station on the Snowdon Mountain Railway. It consists of a narrow platform sheltered by the rocky outcrop of Llechog to the east. Immediately beyond the platform the line joins the exposed ridge on which it runs for about half a mile. The line starts in the valley bottom at Llanberis at an altitude of 353 ft (108 m), Rocky Valley Halt stands at 2,330 ft (710 m).The summit station stands at 3,493 feet (1,065 m), 68 feet (21 metres) below the summit of the mountain. The halt is a later addition to the line, opening after the Second World War.