Like The Grand Canyon ... But Green !

 

I'm genuinely intrigued by this slide, or particularly the location. The shape and weathering looks distinctly "Grand Canyon-esque", and I have seen pictures of a snow capped Grand Canyon, proving that there are a variety of weathers possible, but this ... it's so damned lush.

Any suggestions?

Bonus - Here’s Why You Shouldn’t Stack Rocks in the Wilderness