Muncaster Fell is definitely one of the Lake District's unfrequented gems. Possibly because it has a feel of being somewhat stuck out on it's own and well away from the more popular Lakeland fells, yet it can be easily walked from Eskdale Green, which does have a certain popularity. I suspect if the Muncaster Fell ridge headed in the opposite direction from Eskdale Green it would be just as popular as many other fells in the area.
An interesting find on this fell is Ross's Camp. Story has it that this was used as a lunch spot for Victorian hunting parties. Whether it be for hunting parties or fell walkers is serves the same purpose well enough today.