Marks, or indicators put on trees, and rocks to indicates the direction of a trail through heavily wooded areas. A common feature of skiing and hiking trails.

Related tags:

• cairn - A large pile of stones used as a landmark or a memorial.
• trail_blaze - A carved or painted marking on a tree using to indicate direction.
• trail_duck - Smaller than a cairn, a trail duck is a small stack of 2-3 stones.

External links:

• https://howtowilderness.com/trail-signs/

See also:

• hiking
• nature
• trail