Sirhowy is an area within Tredegar. (North). At the very top oF the Sirhowy Valley. It is located in Tredegar, Sirhowy Hill is a steep hill and is the main road between Tredegar and Ebbw Vale. It is a historic part of Tredegar as it is where a major Iron Works was established in the late 1800s There is more information about Sirhowy on an excellent site
www.tredegar.co.uk