A48 Road

From: Highnam near Gloucester
To: Carmarthen, Note: Originally began in Worcester. Worcester to Newport is now A449.
Cities: Baglan, Cross Hands, Cwmffrwd, Margam, Oakle Street, Saint Hilary, Tidenham, Tythegston, Westbury on Severn, Langstone, Morriston, Saint Lythans, Colwinston, Saint Mellons, Chepstow, Lydney, Pontardulais.