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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 ...

An orange circle painted on a tree in the woods - Mbprojekt_maciej_bledowski/Getty Images It's not unusual to spot markings on trees while walking through wooded areas, but one color, in particular, ...

Q. I recently moved to Redding and everywhere I go I see tree trunks that look like they’ve been painted white. I even saw some that were painted a light blue. Can you tell me why folks do this? A.