[Atarah]

Hi, cos you said it was between the canal bridge going down to the Walton Arms and Pilky Bridge on the main Padiham to Clayton rd, I too went investigating. If you have transport, its best to park by the Canal Bridge going down to the Walton Arms and walking on the canal bank or parking by Pilkington Bridge on Clayton/Padiham road.
Here's a couple of photos, if you look ever so closely at the RH side of the second photo, you can just see the edge of the ruin.