Lost & found backpacks & rucksacks in Frederick

Lost black backpack with mesh pockets and water bottle holder near the pond area at Baker Park in Frederick.

I lost my black backpack while at Baker Park in Frederick. It has several mesh pockets and a water bottle holder on the side. Inside, it holds some personal items like a notebook and a blue lunch box. I last remember having it around the pond area and may have left it by a bench while taking pictures.