Lost bright blue dog collar with reflective strips and a silver tag engraved with the name 'Buddy' near Iowa City park.

I lost my dog's collar while walking near the Iowa City park. It's a bright blue collar with reflective strips and has a silver tag with my dog's name, 'Buddy', and my phone number engraved on it. I'm really hoping someone can help me find it as it's very special to me and my dog.