Catch Me Who Can and mining engineer Richard Trevithick was the primary developer of the steam locomotive. He wanted to present his new invention to the general public, and he looked for a suitable site to demonstrate his invention. He chose Bloomsbury, directly south of the Euston Road, near London's Euston Square. The site is believed to be under University College London’s Chadwick Building, which now houses the Centre for Transport Studies. A circular track in diameter was built, on which a locomotive and a small number of carriages would run. Members of the public could view and ride on this train for a
Steam locomotive north-east England became the leading centre for experimentation and development of the steam locomotive. Trevithick continued his own steam propulsion experiments through another trio of locomotives, concluding with the "Catch Me Who Can" in 1808. In 1812, Matthew Murray's successful twin-cylinder rack locomotive "Salamanca" first ran on the edge-railed rack-and-pinion Middleton Railway. Another well-known early locomotive was "Puffing Billy", built 1813–14 by engineer William Hedley. It was intended to work on the Wylam Colliery near Newcastle upon Tyne. This locomotive is the oldest preserved, and is on static display in the Science Museum, London. In 1825 George Stephenson built "Locomotion