Ladyshore Colliery, originally named Back o' th Barn, was situated on the Irwell Valley fault on the Manchester Coalfield in Little Lever, then in the historic county of Lancashire, England. Founded by Thomas Fletcher Senior, the colliery opened in the 1830s and mined several types of coal. It became infamous as a result of the owners' stand against the use of safety lamps in the mines. Women and children worked in the mines, under poor conditions.