The Original Don't Be A Cairn sticker and campaign!
A rock cairn is a man-made structure typically used to mark something. In many National Parks and trails etc, official cairns are used for trail markers.
Some parks, however, like Capitol Reef have a "No Cairn" rule so best to visit the specific park's site for their marking info.
All parks do have the following rules, however:
1) Do not tamper with intentional cairns: this can cause issues for hikers and disturbs park resources
2) Do not build unauthorized cairns - this is becoming a huge issue in the parks, particularly in the Southwest. It causes confusion, disrupts the natural landscape and can cause more erosion
3) Do not add to intentional cairns. See point number 1
Will one unneeded rock stack be an issue? Not really. However, this trend has compounded significantly due to social media replication which can cause issues and is of concern for the parks.
Sticker measures 3" x 3"
Perfect for your laptop, water flask, bumper or wherever you want to put a sticker! Weather and scratch resistant.