Lost black iPhone 12 with clear scratched case near waterfall bench along Deschutes River in Bend.

I lost my black iPhone 12 while I was out hiking along the Deschutes River in Bend. I think I must have left it on a bench around the waterfall area. It has a clear case with some scratches on the back and my brother's contact as a favorite. I really need it back because it has some important pictures and contacts.