Lost dark blue backpack with band patches left at a scenic overlook in the Wyoming wilderness containing a book, water bottle, and camera.

I lost my dark blue backpack that has unique patches of various bands sewn onto it while hiking in the Wyoming wilderness. It had my favorite book, a water bottle, and a camera inside. I remember setting it down to take a picture at a scenic overlook, but when I walked away, I forgot to grab it. If anyone has seen it, I would really appreciate it back!