Gold pendant necklace with emerald stone lost

I lost my gold pendant necklace yesterday around 3pm near the Walkway Over the Hudson entrance on Main Street in Poughkeepsie. It's a 14k gold chain, about 16 inches, with a small heart-shaped pendant that has a tiny emerald inset. The back is engraved with my initials 'PRK' and there's a faint scratch along the chain from daily wear. It was a gift from my grandmother and really means a lot to me, so I'm hoping it turns up. I retraced steps along Main Street, the area near the CVS by the train station, and under the bridge by Market Street, but I couldn't find it. If anyone found it, please reach out.