Chelfham Viaduct is a railway viaduct built in 1896-7 to carry the Lynton and Barnstaple Railway (L&B) across the Stoke Rivers valley. Designed by L&B engineer, FW Chanter, and containing over a quarter of a million Marland bricks, its eight arches - each 42 feet (13 m) wide and 70 feet (21 m) high - meaning that the 400-foot (120 m)-long viaduct is the largest narrow gauge railway structure in England.