Danimal
iMTB Addict
Come on, gimme some cred for reforming my cairn-kicking ways.
Cairns were a valuable navigation asset when I used to do a lot of backpacking in the high Sierra. Many areas hiked were rock and unable to have a worn trail, so map skills and small cairns were necessary.
Knocking them over could prove detrimental given the situation.
Yeah, I only knock them over or reduce the size if they appear to be a hazard.