Think those stacks of rocks are unique and fun? Think again.
Storm King Mountain Hike the Hudson Valley
Don't Move Rocks at Great Smoky Mountains Park in Tennessee
Please don't stack rocks on your next hike. Here's why. - Lonely Planet
Stacking Rocks Leaves Nature in the Balance - Red-tail Land Conservancy
Why Scientists Fall for Precariously Balanced Rocks - Atlas Obscura
Please don't stack rocks on your next hike. Here's why. - Lonely Planet
Where It's Illegal to Stack Rocks in New England
Balancing Act: The History of Rock Cairns and Why Stacking Rocks is Discouraged in Zion
Mt. Tammany Hike the Hudson Valley