The Sunspire Heart sings loudest of all

Well acutally we are sitting not to far from my newest cache I wanted it to be snowed in for it keeps fresher; but not to far up that I couldn't claim it in the colder months. I decided to go higher in the mountain looking to get away from the heat; I worked myself up with all that digging, Ferdie chuckled softly Well, I actually sneezed dust is and awful thing you know. he nodded at her all seriousness in his face suddenly for a full minute then chuckled again, waving his tail across the snowy ground
upon hearing the echo, I knew I had stumbled on something and low and behold it's an amazing Valley below us and a cliff directly across from us. What should we call this echoy place? Ferdie still panted soft white breaths as he tried to catch his breath wholly from the exertion of singing