Blue Stone Bitumen A face at the window Ingleton Quarry Quarry processing Melton Ross limeworks Product and process Ingleton quarry Drum house Cement works Komatsu Hillhead Hardendale limeworks Quarry processes Crushing 18000 litres of water NO HGV's Props Thrislington Quarry Cement manufacture Shaft kilns Drumhouse 54 White on green Kenfig lime works Grange Mill limekilns Threlkeld Aggregates production Minninglow embankments De Winton at rest Smith's of Rodley Hanging on PQR - quarry guard Ketton Cement Works Dowlow loading bunkers Snab End Hindlow kilns Coating plant Barn and kiln Underneath the railway Dropping the rocks Welcome to Hope Cement Australia Mill Cement works rail 2 Incline 43 Haddock Low limekilns