The A5 and M54 run from Wolverhampton (to the east of the county) across to Telford, around Shrewsbury parallel to the line of Watling Street, an ancient trackway. The A5 then turns north west to Oswestry, before heading north into Wales in the Wrexham area. This is an important artery and the corridor is where most of Shropshire's modern commerce and industry is found, notably in Telford new town. There are also a number of railway lines crossing over the area, which centre at Shrewsbury. To the south west of Telford, near the Ironbridge Gorge, was Ironbridge Power Station.