Smithy Brook runs down the full length of the middle of Blundell's Wood, from Billinge Road just south of Ribbesford Road through to Pemberton Colliery. It's a lot cleaner since the construction of the minewater treatment plant mentioned by Neil Ferguson in the 'Highfield, Wigan' thread.
approx 40 Siskin on Pemberton Colliery today in Birches along Smithy Brook below the minewater treatment lagoons drumming Great Spotted Woodpecker and singing Goldcrest in Blundell's Wood