Unable to justify the expense of an aqueduct to pass under the canal, trains would hence proceed up what was called the "Rock Siding" towards the Hoffmann kilns, before reversing onto the Llanfyllin branch.
The loopline then accessed the O&NR again, this time merging north via Llynclys junction towards Weston Wharf and onwards to the companies headquarters in the station at Oswestry.
To access the Nantmawr branch for similar mineral extraction purposes, it ran under the O&NR via a bridge, and the canal via an aqueduct.
[4] On 11 April 1894 the CR agreed to build a 0.5-mile (0.80 km) deviation from the Llanfyllin branch to join the Nantmawr line at Wern.
A single line south from Oswestry to Llynclys junction enabled stone services to continue on the Nantmawr branch as far as Llanyblodwel quarry until 1988.