Pinnacle Brook

Pinnacle Brook is a small brook in Tewksbury, in the part of old Billerica that became Tewksbury in 1734. It runs west for about a mile and enters Meadow Brook in the long swamp below Ames Pond, and so reaches Strong Water Brook and the Shawsheen River. The name is from the state's hydrography map; its origin has not been found, and no Billerica record of the brook is known.