Have you seen the signs for leave no trace. “Please take nothing but photos leave nothing but footprints,” they say. Or, “pack it in pack it out.” You get the idea. According to information in an m-live article rock stacking is causing environmental problems in the upper peninsula.
Rock stacking, as seen in these photos, is killing stone flies. Stone flies are food for fish in the Tahquamenon River. When humans remove sandstone rocks from the river bed they are actually removing the homes for stone flies, and the stone flies can be squished by the stacking. So, even a seemingly harmless art (as seen in the eye of the beholder) form can effect the environment by destroying habitat. For more information about how rock stacking is effecting the environment read this:
https://www.mlive.com/entertainment/2018/08/rock-stacking_tourists_are_dam.html