What's with all those stacks of stones in the woods?

This Instagram trend is actually terrible for the environment - Wales Online

Where Do the Rock Piles on the Island's Trails Come From?

Why you shouldn't stack rocks in the wild - The Washington Post

Robyn Martin's Instagram, Twitter & Facebook on IDCrawl

Making rock stacks upsets habitats, cairns are different, LNT

Stacking stones 'not allowed' in Texas: This is why rock cairns are prohibited at Lone Star State parks, authorities say

Robyn Martin's Instagram, Twitter & Facebook on IDCrawl

Stop the cairn-age. Don't stack rocks.

The Interesting Meaning of Stacked Rocks on Trails

November 2015 – Simon Burrow

Beauty Echoing off Old Stone Walls - by Ryan B. Anderson