 Its Spital Tongues entrance was close to what is now the junction of Belle Grove West and Ancrum Street.The tunnel ceased to be used in 1860, and remained unused for the next eighty years, except for a brief period from 1928 to 1929 when Thomas Moore, a Gateshead entrepreneur, attempted to farm mushrooms in the tunnel.It was reopened for use as an air raid shelter during World War II, with £37,000 spent on alterations and new entrances in order to provide seating capacity for 9,000 people.