We found this petroglyph earlier this month in a cave above Idaho’s Middle Fork Salmon River.

The cave art was probably rendered by a member of the Sheepeaters–the band of Western Shoshone that specialized in hunting bighorns–at least 150 years ago. Is it a cry for help from a cave-bound spouse, waiting for her brave to return? Or a hunter recounting the rams he has killed? Write the most imaginative caption you can in the comments section. The best entry will win a Gerber field knife sharpener.

Contest ends October 31.