Ingleborough is the second highest mountain in the Yorkshire Dales, at 723 metres (2,372 ft). It is one of the Yorkshire Three Peaks, the other two being Whernside, at 736 metres (2,415 ft), and Pen-y-ghent, at 694 metres (2,277 ft). Ingleborough is frequently climbed as part of the Yorkshire Three Peaks Challenge, a 24-mile (38-km) circular challenge walk starting and finishing in Horton in Ribblesdale.