Found blue backpack with a circular mountain logo patch near Mount Rushmore hiking trail.

I found a blue backpack while hiking near Mount Rushmore last weekend. It looks relatively new and has a circular patch on the front with a mountain logo. I believe someone must be missing it, as it was just lying on the trail. I had searched around to see if anyone was looking for it, but there was no one around. I'm hoping to return it to its rightful owner.