sentences:  Sandstone for building the priory was available at an outcrop nearby, sand for mortar could be obtained from the shores of the River Mersey, and boulder clay on the site provided material for floor and roof tiles.Excavation has revealed remnants of oak, some of it from trees hundreds of years old.It is likely that this came from various sources; some from nearby, and some donated from the forests at Delamere and Macclesfield.