The U.S. mail is delivered six days a week by horse.
Horses being packed for the ride out.
"Now let me explain where the water is coming from..."
"Now I understand. Thank you dear."
"You see, honey, this is a waterfall because water is falling."
You can't throw a rock without hitting a waterfall.
And another.
Modern petroglyph.
The U.S. mail is delivered six days a week by horse.
The U.S. mail is delivered six days a week by horse.
The U.S. mail is delivered six days a week by horse.
See photo in original gallery.