Wigan Album

It doesn't look as deep on the photo as it did when I went to the school nearby, at lunchtimes we go around the top edge of the quarry looking for fossils in the limestone slate and shale, mostly they were of fern leaves though odd times you'd find one with a different leaf or a Dandelion like seed head, they were quite fascinating to look at with being prehistoric, also with you the first person to see that image, though if left in light they did fade with the fossil image not as clear as when the slate was first broken open.

If I remember correctly there were two blasting times, one in the morning and another early afternoon.

There was a lad who drowned whilst swimming in it in about 1970 ish.

Davey, sadly there were two young lads who drowned in there.
There was a thread about it: https://www.wiganworld.co.uk/communicate/mb_message.php?opt=f3&msd=228768&page=64&subject=NORLEY%20QUARRY

Local folks were happy when it was to be filled in, though they didn't know that it was to be the towns refuse filling it.