Lost cherished hardcover edition of 'To Kill a Mockingbird' left on a park bench near Butte.

I misplaced my cherished hardcover edition of 'To Kill a Mockingbird' while walking through the park near Butte last Saturday. I had just taken it out to read a few passages and must have left it on a bench when I got up to leave. It's a bit worn, but it holds a lot of sentimental value to me. If anyone finds it, please let me know!