43159 climbs Sapperton Bank on 20 February 2010 with the 1L40 09:00 Cheltenham to Paddington First Great Western service. It is on the tightly curved upper section of the climb, which at this point is on a gradient of 1 in 60, although this will ease to 1 in 90 once the train reaches Sapperton Tunnel a short distance further on. As would be expected in a heavily wooded valley, there are very few locations that are free of shadows on this route during the winter months.