This month's Natural Mystery comes from the Chequamegon National Forest, near Clam Lake, Wisconsin. Kirsten Welge took the picture during the recent trailing workshop with Preston Taylor. The questions are: What is this? Who left it? And which direction was it facing?
As always, please be as specific as possible, and please share how you arrived at your answer so the rest of us can benefit from your process.
To download the photo or view it larger size, right click the image below.
Answers are due by December 3.