Several years ago, as I was rolling down the Main Trail, almost at the Portal, I noticed a middle-aged, touristy couple stop at the first switchback, reverse, and start returning back to the trail-head.
As I passed them, several F16 jets rocked overhead, turbine scream echoing, bouncing, thumping and reverberating through the mountains.
The woman said "What's that?, It's sooo annoying!"
"Lady", I replied, "That's the sound of freedom".
So, go
here and click on the photo for a full-size impossibly-perfect 3K pix image.
Found on
Jalopnik.
To their credit, though, I did not see the couple jettisoning any trash.