A writer calls for an end to the random piles of rocks -- cairns -- that serve no purpose and mark no trail.
Stacked Rocks
People Are Destroying Great Lakes Erosion Barriers
Cairns and stacked rocks
Rock balancing - Wikipedia
The cairns of Acadia: Objects of wonder, subjects of vandals
Leave No Trace – Stop building cairns / inukshuks – The ExploreNorth Blog
Week in review: May 19 — High Country News – Know the West
cairn-knocking the stupid ones
Zion National Park - Rock stacking in national parks may seem