Sometimes many a steam loco and crew struggle with the steam gradients of the Northern Fells be it over the 1 in 75 climb to Shap Summit or the 1 in 100 Settle and Carlisle line . This is some footage taken from 2012 to 2020.The last shot at Shap Summit sees a poorly 45231 attempting to make it into the loop after a mechanical failure shortly after Tebay.