There will be a volunteer clean-up day on the Cochituate Rail Trail this Saturday, May 1, either 9 am to noon or noon to 3 pm. All are welcome! Park at 500 Old Connecticut Path in Framingham and check in across the street. More info in the Rail Trail Committee flyer.
Update: There's more about the cleanup in Friday's MetroWest Daily News.
A small portion of the trail may be open to the public as early as June, Boston Globe West Weekly notes. "The half-mile stretch starts near the Framingham-Natick line, at Route 30 near Speen Street, and ends at the Mass. Pike, near Old Connecticut Path."