Yes. I wish I knew more about what type of rural areas vote LibDem.
The UK posters can enlighten us more, but I think a lot of it is basically a Celtic fringe "Labour are the evil urban socialists, but the Conservatives are the English landlord overseers" vote & not particularly ideological. There are not very many LibDem rural seats in non-Cornish England proper. (There are a few, though, and I don't know what they have in common.)
generally, yes, it looks that way, but the LibDems did manage to win a few seats in Greater London and in Sussex. Also, the LibDems don't seem to hold any seats in Northern Ireland.