Not quite the same problem here in North Warwickshire, there are some hills if no mountains but there is a lack of good long open routes that arnt on roads.
Most walking / route sites I look at seem to have looked to see where I live, drawn a 20 mile radius circle around my house and said to everyone 'dont make any suggestions inside this circle'.
Half the public footpaths I try to walk down are overgrown to impassable, unmarked, chained shut or otherwise obstructed. I of course report every one - which are very slowly being addressed ... very very slowly. (I've reported I think 6 deliberately obstructed footpaths just within 1 mile of my house).
It does all make harder to find good routes that dont become repetitive.