Trail Art

A couple weeks ago we were out hiking on a beautiful Sunday morning. Some urban trail art caught my eye. 

I'm not exactly an advocate of etching into tree bark, but since for me it's found art, I didn't see any harm in highlighting it.

I always wonder who these initials belong to.  Do you?  I also wonder if those couples who had the passion to carve their entwining into a tree are still together.  What do you think?