Length: The Wikipedia article states the length as “200 mile” (quoted from the article).

From the Wikipedia article

The Bay Circuit Trail and Greenway or Bay Circuit is a Massachusetts rail trail and greenway connecting the outlying suburbs of Boston from Plum Island in Newburyport to Kingston Bay in Duxbury, a distance of 200 miles (320 km).

Coordinates

42.62784167, -71.06842222

Source

This page is built from Wikipedia article “Bay Circuit Trail”. Source record: wikipedia_trails#11. Wikipedia data fetched 2026-10-03. Text from Wikipedia, licensed CC BY-SA 4.0.

Listed in: List of long-distance trails in the United States.