Did you know there is an audiotrail for Marsden? Why not download it from www.moorsforthefuture.org.uk/mftf/audio_trails/marsden.htm
The walk visits a number of locations on the Marsden Moor Estate, including Pule Hill, Black Moss and Swellands reservoirs and Close Moss, and conveniently it starts and finishes at Marsden Railways Station. Allow approximately 4hrs 30 mins for the walk. It's free to download, so try it, and see what you can learn about the Marsden Moor Estate.