<P> The idea originated from Barnsley, where the head office is now based . Work on the trail started in 1999 . Early development was boosted by a £ 5 million investment by the Millennium Commission . The trail was officially opened in September 2001 . However, the route was not fully completed until late 2004 . It cost £ 60 million to construct . </P> <P> The main west--east trail starts at Southport, then heads south through the suburbs of Liverpool, through Widnes, Warrington, Manchester, Stockport and Hadfield . It then crosses the Peak District, heading up the Longdendale valley via the Longdendale Trail to Woodhead, then down through Dunford Bridge and Penistone, Doncaster, Selby, Hessle, Hull and Hornsea . This route covers 207 miles (333.1 km). Between Southport and Selby it is National Cycle Network, Route 62 and from Selby to Hornsea, NCN Route 65 . </P> <P> There is also a north--south trail that runs from Leeds and through Wakefield . It then passes through Barnsley and crosses over the main trail in the Dearne Valley area . After that it continues south to Sheffield and the Rother Valley Country Park before terminating in Chesterfield . This is NCN Route 67 and is 70 miles (112.7 km) long . </P> <P> The route also has several deviations and loops in South Yorkshire, including one to Rotherham, NCN Route 6 and NCN Route 627 south of Penistone . Another 15 - mile (24.1 km) spur runs from Selby to York, NCN Route 65 . </P>

Where does the trans pennine trail start and finish