Lost small blue flash drive with keychain near picnic area at Lake of the Ozarks containing precious family videos and photos.

I lost a small blue flash drive while enjoying the day at Lake of the Ozarks last weekend. It's about 2 inches long and has a keychain attached. I think I dropped it near the picnic area where we set up. Inside, it holds some precious family videos and photos that can't be replaced. If anyone has found it, I would be so grateful to get it back!