 The area mined by this company, Shakerley Collieries and James Roscoe's New Lester Colliery was opencasted after the Second World War, removing all traces of the industry.The worst mining disaster in Tyldesley occurred at Yew Tree Colliery on 11 December 1858.An explosion of firedamp caused by a safety lamp cost 25 lives, the youngest 11 and the oldest 35 years of age.