Cust's Gully at the western end of Great End's cliffs is named after 19th-century pioneer climber and sketcher Arthur Cust, a classical scholar from Yorkshire also known for his watercolour sketches of the Matterhorn and Mont Blanc. Cust's Gully is a Grade 1 rock climb, but a difficult obstacle for walkers ascending from Sprinkling Tarn. Cust's first winter ascent of the gully was recorded in 1880, although he is thought to have ascended it earlier.