 Having been joined by Clayton Brook, draining the village of the same name to the east, the river moves westwards, skirting Lostock Hall, then flows south west, past Farington and through the western suburbs of the town of Leyland, collecting Mill Brook (from Worden Park) and Hollin's Brook (draining Runshaw Moor), before moving west once again towards Croston, where it collects Wymott Brook (emanating from close to Midge Hall) before joining the River Yarrow shortly afterwards.