The most important message the River Rangers try to spread: DON’T MOVE THE ROCKS. Rocks in and around rivers are important habitats for salamanders, macroinvertebrates, fish and more! In addition, when you move these rocks, you can change the flow of a stream an increase sedimentation, which may change what can survive there. This summer, we took apart more than 300 rock structures! Please refrain from moving the rocks and leave the cairns for designated trail markers.
EDIT- These are pictures of disassembling rock structures, not building them!
Learn more in “The Last Dragon” by Freshwaters Illustrated.
Hellbender photograph by David Herasimtschuk