Alewife Linear Park - Somerville Community Path - Grove/Cedar Bike Path. This is a rail trail that has different names in different places. The west end is part of the Alewife Linear Park and connects to the Minuteman Rail Trail and the Fitchburg Cutoff trail. The middle section is usually called the Somerville Community Path. The east end is the Grove-Cedar Bike Path and was built in 1992.
The section in red is the proposed extension to Boston.