The Spen Valley Line (also known as the Mirfield and Low Moor railway) was a railway that connected Mirfield with Low Moor through the Spen Valley in West Yorkshire, England. Opened up by the Lancashire and Yorkshire Railway in 1847, with full opening to Low Moor in 1848, the line served a busy industrial and textile area (known as the Heavy Woollen District (HWD)) and allowed a connection for trains between Huddersfield and Bradford. The line was absorbed by the London & North Western Railway, the London Midland and Scottish Railway (LMS) (on grouping) and British Railways on Nationalisation. A separate link between Heckmondwike Central and Thornhill that opened later and was known as the Ravensthorpe Branch, allowed through running to Wakefield and beyond. The line was closed down to pas