sentences:  The extension to Ruthern Bridge was opened on 30 September 1834, and served mines in the locality producing copper, iron and lead, and especially tin from Mulberry Mine.Provision for this traffic was made by two sidings, one of which ran over a series of sand drops; an additional loop capable of accommodating eight wagons was added 6 chains towards Grogley in 1914.There were proposals in the 1870s to extend the line to connect with the Cornwall Minerals Railway but these came to nothing, so the only change made to the line was provision at an early date of a siding near to Grogley junction to serve an ochre pit although this was removed soon after the pit ceased working in 1912.