[msrenee]

I love finding little things that other people have made out of natural objects. It reminds me that humans are part of nature at the end of the day. There's a big difference between spray painting your initials on something and setting up ephemeral art like stone stacks.

Also, being as you were on a river, I'd assume those stone structures weren't cairns, but I figured I'd mention those in case someone comes across a stack of stones and feels it should be returned to its natural state.