Corduroy Road Ruin Historic Site is a heritage-listed former stagecoach route and now disused road at East Coonamble Road, Curban, Gilgandra Shire, New South Wales, Australia. It was designed by n/a and built from 1850 to 1923. It is also known as Cobb & Co route. The property is owned by Gilgandra Shire Council. It was added to the New South Wales State Heritage Register on 5 October 2018.