Quote Originally Posted by Palanan View Post
What I’m looking for is a scaled-up version of the site of Edoras in Rohan. Properly speaking, Edoras is the name of Theoden’s capital in the valley of Harrowdale; I can’t find a separate name for the hill it was built on.
I assume you mean a scaled up version of the hill-fort? A good starting point might be to web search for hill forts.
There is a very good reason you won't find a name for the hill in the books - Edoras was near the centre of a depression in a pretty flat plain.

(For me, Edoras is one of the most annoying pieces of completely inappropriate setting in the films, to make it look good Jackson put Edoras on top of a brilliant natural fortress - three sides being much steeper than could be sensibly assaulted - and then left in the line from the book about it being "completely indefensible", a line that really did not work for that Edoras.
Next worst is probably the aerial shots of Bilbo and the dwarves heading East in The Hobbit part one - it's a lovely view of trackless countryside which doesn't really work for a party taking the main road...)