Skeleton Dragon mountain

At some point in the past, a behemoth of a dragon was impaled on the side of a mountain near Klugetown. His heart was harvested by the townspeople near by, presumably Basalt Beach town.

Geography
The mountain was a rugged, sharp and coastal place. Given the scenery, it's possible it was intended to be near by the Basalt Beach, as both are black, rigid and coastal locales. Interesting, the skull of the dragon was carved and marked, possibly implying his corpse was defaced by locals.

Behind the scenes
The location was intended to be a location explored by the Mane Six at some point early in production. Designer Alexia Tryfon mentioned that they were attempting to push the design of Klugetown. Like the "vast forest" and Klugetown Tavern, it was eventually cut. Alexia Tryfon claimed that it was "[...] too far for the My Little Pony universe."

Appearances

 * The Art of My Little Pony: The Movie