Complex sentence: It flows through the Styal country park and was used in the cotton calico factory there, Quarry Bank Mill, as a source of power, near to the Quarry Bank Mill site there is a natural weir.
Split into simpler sentences: It flows through the Styal country park and was used in the cotton calico factory there, Quarry Bank Mill, as a source of power. Near to the Quarry Bank Mill site there is a natural weir.