Next time you go hiking through the forest keep an eye out for some pretty strangely-shaped trees. These trees are quite unique in that they bend in very unnatural angles. Sure, some trees are just weirdly-shaped, but there's something special about these bent trees.
Native Americans would bend trees in order to create trail markers that formed an early routing system, which served multiple purposes. From indicating that water and food was nearby, to warning travelers of rough country ahead, these landmarks were important features in navigating the early Americas.
At Florissant Fossil Beds National Monument in Colorado, for instance, you'll find lots of Ponderosa pine trees that were bent for thsi purpose:
These trail trees point towards Pikes Peak, which the local Ute Indians believed to be a sacred site. But not every marker tree is so easily spotted. And in fact, looking for a strangely shaped tree isn’t quite enough, since each tribe created slightly different markers. Because most people don’t realize what these trees truly are, they are easily overlooked and can fall victim to development, disaster or disease with no one caring for them. Because trail trees are roughly 150 to 200 years old, many of them won’t be with us for very much longer. We may still be able to see this original roadmap of our country, but the window to do so is closing. - American Forests
The practice of bending trees to use as trail markers is by no means confined to Colorado. In fact, all across the country you can find bent trees that were used by Native American tribes to serve as permanent trail markers. Mountain Stewards have compild a large database that includes over a thousand bent trees in 39 states. You can help out too! If you happen to run across a bent tree, snap a pic, note its lcoation and shoot it over to Mountain Stewards.