Grid Reference [SD 75354260]
The photograph shows waulsortian flank limestone. When you look closely there are heavy concentrations of fragmental crinoid parts possibly suggesting that they have been sorted by currents and don't appear to have moved far after death. This is a good locality to look for geopetals.
Lancashire Wildlife Trust together with the Geologists' Association have recently published the " Salthill Quarry Geology Trail " Guide No.58, 1997. This is an updated account based on "Salthill Quarry Geological Trail" (Grayson, R.F. 1981).