Think those stacks of rocks are unique and fun? Think again.
Storm King Mountain Hike the Hudson Valley
Mt. Tammany Hike the Hudson Valley
Taylor 101.5 WPDH ? Page 6
Don't Move Rocks! Friends of the Smokies
The hudson valley fold thrust belt - Structural geology of
Please don't stack rocks on your next hike. Here's why. - Lonely Planet
What are Rock Cairns & Why You Shouldn't Build Them – Bearfoot Theory
Should you push over these stacks of rocks? Here's what NPS says you should do
Mt. Tammany Hike the Hudson Valley
Rock stacking in national parks: Why is it bad?
Stop The Rock Stacking
Taylor 101.5 WPDH ? Page 6
Why you shouldn't stack rocks in the wild - The Washington Post
Danger! Stop Stacking Rocks In New York State Parks!