Lost delicate gold heart-shaped locket with photo inside near the river park in Butte.

I lost a delicate gold locket while walking my dog in Butte last Saturday afternoon. It has a small heart-shaped design and opens up to reveal a photo inside. I had it around my neck when we were at the park by the river, and I noticed it was missing shortly after. I'm really hoping someone might have found it as it holds sentimental value.