See introduction for a discussion of the provenance, dating and significance of the map displayed here and other maps in the collection that have been put on line. Email for a GPX file of the route that can be imported to various mapping programs (I can’t work out how to add it to WordPress). Some of the transcriptions of names on this map are doubtful: I will check them with the clearer originals when Lancashire Archives reopens. Beacon Fell is shown on the map but not named.
This possibly shows one of the routes drovers took when bringing their stock from the north to the fairs and markets of Lancashire and onwards. There would be plenty of free or cheap grazing for their overnight stops, as for example off Cumeragh Lane (Cumber Lane on the map below) between Longridge and Whittingham, where there is a Halfpenny Lane, ‘so called because of a toll charged to cattle drovers for an overnight stay’. 
 Janet Rigby, A Journey In Time Through Goosnargh, Whittingham & Inglewhite (Author, 2017), 7.