User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-6050823-20131005024531

Heres what I found about the "Legend of Dara Amadyura" and this is also the "Origins of the Heavenly Mountains"(Source: In-game while playing online)

The Heavenly Mountains of ancient times was pretty much your basic mountains until something happened in the area caused by giant unknown creatures that changed the area in a extreme way and changed it into the Heavenly Mountains(Note rocks didn't start falling after this incident)

In other words, Dara Amadyura may have helped make the Heavenly Mountains, what they are right now from it digging and climbing up the mountains. Also, the Legend suggests that there is more than one Dara Amadyura and I think its possible that it could've been multiple males chasing a female like some snakes.