Corporation Siding was a branch some 500m long off the former Manchester & Milford Railway (nprn 91660) and formerly served Chwarel Ystrad Meurig stone quarry (nprn 307697).
Movements were controlled by a small signal box (nprn 307701) at the junction with the main line. The siding was closed and lifted by 1948.
B.A.Malaws, RCAHMW, 27 January 2003.