Add Yahoo as a preferred source to see more of our stories on Google. An orange circle painted on a tree in the woods - Mbprojekt_maciej_bledowski/Getty Images It's not unusual to spot markings on ...

Whether you’re walking along a city sidewalk or hiking deep in the forest, you might occasionally notice paint marks on tree trunks (or even a metal band once in a while). Those paint marks are codes ...

Vandals damaged the Big Old Tree inside Jeremiah Colburn Natural Area on Earth Day, spraying painting their initials into the ...

Beaver Backers paint trees to protect furry friends FARGO-Michelle Peterson dips her paintbrush into a mixture of eco-friendly paint and sand and slathers it on a tree in Trefoil Park in north Fargo.