Massachusetts is a very populated state in New England. In the west are the Appalachian Mountains, with of course the Appalachian Trail (85 miles in Massachusetts).
The Massachusetts Trail on the Metacomet ridge is 114 miles long. The Midstate Trail counts 92 miles. Other trails include the Bay Circuit Trail, a 150 miles green corridor, and the East Coast Greenway (under construction). The Eastern Continental Trail passes through the state. Finally, there is the proposed New England Trail.