Yesterday, I'm riding along in a remote marshy area of the gulf coast.

Suddenly, out of nowhere, a pebble hits the front of my helmet and makes a VERY loud "smack" sound. I felt it, heard it, but never saw it coming. There's no way that the tire kicked it up on me...trajectory wouldn't have worked...

I was on a road where a car hadn't passed for a few minutes and I was totally alone in a wooded, marshy area. There were no clouds in the sky either.

So, in God's huge creation, what would cause one little pebble to find my head in the middle of nowhere???

Any ideas? Anyone else had this happen?