Boston - City to Sea to Summit (MA)

Suffolk County, Massachusetts, United States

34.9 miles (56.2 km) · 2,769 ft elevation gain · Loop · trail · Route

The Boston - City to Sea to Summit (MA) route traverses 34.9 miles through Suffolk County, Massachusetts, United States. Elevation gain totals 2,769 feet, with 2,808 feet of descent. The course averages 85 feet of vertical gain per mile. About 90% of the distance is runnable terrain. Terrain is predominantly trail. Terrain difficulty is rated as hilly. Difficulty is rated 9.6 out of 10, placing it in the 62.37th percentile. The route draws trail runners and hikers interested in technical terrain in Massachusetts.

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