The Still River Greenway in Brookfield is open, and many residents are using it. But First Selectman Steve Dunn says he's getting numerous reports that many people are not wearing masks.  There are also people running without masks on and others are using bicycles on the path, which is currently only open to walkers.  Dunn called on residents to protect each other by only walking on the Greenway and wearing a mask at during the entire walk.  He says they want to keep the Greenway open and keep residents safe at the same time and to do both, everyone has to follow the rules.