Input (grade 13): McConnel set about improving Bryn Eglwys to increase its output and in 1865 his company earmarked money for the construction of a narrow gauge railway connecting the quarry with the port of Aberdyfi.
Output (grade 10): McConnel set about improving Bryn Eglwys to increase its output. In 1865 his company earmarked money for the construction of a narrow gauge railway connecting the quarry with the port of Aberdyfi.