On this trip i spent a lot of time listening to sounds around me, imaging sounds for visuals which otherwise had no sound, or had sound i didnt enjoy. Its such an enriching exercise, also meditative. Soundscape make up most of the space..
Each place i visited had its own distinct sound.

At the grand canyon, i sat at the edge of a rock, and meditated for quite a while. Of the all the sounds I could hear, the loudest was of some kind of vehicular traffic in the distance. It was loud and almost sounded like a freeway with cars whizzing past every half minute. This surprised me because as far as i knew, the freeway was very far away, and even the internal grand canyon park roads are at quite a distance form the rim. But then again, i wasnt sure about the distanced, and i imagined that probably the vast empty canyon echoed a lot of sound. This disturbed me quite a lot, knowing that even all the way out there, i could still hear traffic.

Anyway, later i was telling dad this.. and he grinned a wide grin.. and slowly told me that what i thought to be traffic was actually loud canyon winds gushing at high speeds through pine forests and other dense wild shrubs 
:)
However much i love wind sounds, i think the Ocean has by the far the most orchestrated loud sounds.. it absorbs everything. It is my most favorite. The Pacific Ocean here is splendid..