The Cape Cod Rail Trail is a 26-mile paved rail trail located on Cape Cod in Massachusetts. The original Cape Cod Branch Railroad was opened in 1846. The trail route passes through the towns of Dennis, Harwich, Brewster, Orleans, Eastham, and Wellfleet. A 3.7 mile extension to the west that connected to local bike paths was built in 2016-2018. A two mile extension is planned for Wellfleet. The first 1.0 mile started construction in 2021 and is colored gold.