Beyond Wolverhampton the line continued via Shrewsbury to Chester and (via a joint line with the LNWR) onwards to Birkenhead and Warrington; another route via Market Drayton enabled the GWR to reach Crewe. Operating agreements with other companies also allowed GWR trains to run to Manchester. South of the London to Bristol main line were routes from Didcot to Southampton via Newbury, and from Chippenham to Weymouth via Westbury.[38]