I wonder why colorado has so many red areas around hiking trails. Is it just one guy with a bad device who loves to hike or is it because there's bits of radioactive ore on the trails or something?
Same impression here reviewing several hiking trails in California. Some of the most famous ones too, like Yosemite’s Vernal Fall / Nevada Fall apparently have high radiation? What’s going on here? Am I to believe there’s a natural uranium deposit there?