Warton Crag is a limestone hill in north west Lancashire, England. It lies to the north west of Warton village, in City of Lancaster district. At it is the highest point in the Arnside and Silverdale Area of Outstanding Natural Beauty, and is listed as a HuMP or Hundred Metre Prominence, having a drop or prominence of with its parent being Hutton Roof Crags. Two areas are Local Nature Reserves, called Warton Crag and Warton Crag Quarry. Different sections are owned by Lancashire County Council, the Wildlife Trust for Lancashire, Manchester and North Merseyside, Lancaster City Council and the Royal Society for the Protection of Birds.