Connecticut River Greenway State Park is a Massachusetts state park composed of separate protected parcels along the Connecticut River in the Pioneer Valley rather than one continuous tract. Built up over about 20 years beginning around 1986, largely through efforts coordinated by Terry Blunt and the Department of Conservation and Recreation, it expanded earlier state holdings into a broader river-corridor conservation project. The park protects 12 miles of shoreline, wildlife and plant habitat, archaeological and historic places, and public access sites. As part of a wider network of protected farmland, conservation land, and refuges, it preserves a working river landscape while supporting boating, canoeing, fishing, and picnicking.