Stodhart Tunnel is a 100-yard (91 m) tunnel on the Peak Forest Tramway at Chapel Milton, Derbyshire. The tunnel stretches under the Chapel-en-le-Firth to Glossop Road. Although one side has been blocked up, it remains one of the oldest rail-related tunnels in the world and was also the site of one of the earliest rail-related accidents, when a laden carriage rolled into two horses, killing them.