Input (grade 13): The line was opened in 1866 to carry slate from the quarries at Bryn Eglwys to Tywyn, and was the first narrow gauge railway in Britain authorised by Act of Parliament to carry passengers using steam haulage.
Output (grade 8): The line was opened in 1866 to carry slate from the quarries at Bryn Eglwys to Tywyn. It was the first narrow gauge railway in Britain authorised by Act of Parliament to carry passengers using steam haulage.