Olive-green dry bag with pinecone sticker

I lost my olive-green dry bag yesterday around 3pm. It's a compact, 9-inch waterproof pouch with a black zipper and an orange carabiner clipped to the top handle. The front has a small pinecone sticker, and inside there's a laminated tag with the initials 'P.K.' plus a wrinkled map of the Esopus Creek trail. I was near the Esopus Creek overlook behind the Phoenicia Diner on Main Street when I last saw it. It also holds a USB charger and some sentimental notes from my grandfather, so it's really important I get it back.