 The pass starts east of Glossop and climbs to the Pennines watershed between the moorland plateaux of Kinder Scout and Bleaklow to a high point of above sea level, where it crosses the Pennine Way.After this, it passes a public house that used to be known as the Snake Inn, and descends through forest to the Ladybower Reservoir at Ashopton.The name of the road matches its winding route, but actually derives from the emblem of the Snake Inn, one of the few buildings on the high stretch of road.