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Another station which is the busiest in it's PTE area, is Sheffield, which is of course in South Yorkshire PTE area, whereas Leeds is in West Yorkshire.
At Dewsbury, in one direction the track layout makes it possible to hold a slow train in the platform while an express overtakes. Marsden is another station where this is the case.
From Pemberton, there is an hourly service Monday to Saturday daytimes westbound to Kirkby (for connections to Liverpool Central) and eastbound to Manchester Victoria via Walkden.
On Monday to Saturday daytimes, there are three departures each hour from Atherton to Manchester Victoria, one of which continues through to Blackburn via Todmorden.