Question: What was the eastern terminus of the historical railroad that ran 98.77 miles through towns including a Middlesex County town with a 2010 census population of 17659?

Context paragraphs:
U.S. Route 130: U.S. Route 130 (US 130) is a north–south U.S. Highway completely within the state of New Jersey.  It runs 83.46 mi from Interstate 295 (I-295) and US 40 at Deepwater in Pennsville Township, Salem County, where the road continues south as Route 49, north to US 1 in North Brunswick Township, Middlesex County, where Route 171 continues north into New Brunswick.  The route briefly runs concurrent with its parent US 30 near Camden, about one-third of the way to New Brunswick.  The road runs within a close distance of I-295 south of Bordentown and a few miles from the New Jersey Turnpike for its entire length, serving as a major four- to six-lane divided local road for most of its length.  US 130 passes through many towns including Penns Grove, Bridgeport, Westville, Camden, Pennsauken, Burlington, Bordentown, Hightstown, and North Brunswick.

Acton, Massachusetts: Acton is a suburban town in Middlesex County, Massachusetts, United States, approximately twenty-one miles west-northwest of Boston along Route 2 west of Concord and about ten miles (18 km) southwest of Lowell.  The population was 21,929 at the 2010 census.  It is bordered by Westford and Littleton to the north, Concord and Carlisle to the east, Stow, Maynard, and Sudbury to the south and Boxborough to the west.  Acton became an incorporated town in 1735.  The town employs the Open Town Meeting form of government with a Town Manager and an elected, five-member Board of Selectmen.  Acton was named the 11th Best Place To Live among small towns in the country by Money Magazine in 2015, and the 16th best in 2009 and in 2011.  The local high school, Acton-Boxborough Regional High School, was named a Blue Ribbon School by the U.S. Department of Education in 2009.  In 2012, U.S. News & World Report ranked Acton-Boxborough #3 among open enrollment high schools and #7 overall for STEM education in the United States. [6]

Sudbury, Massachusetts: Sudbury is a town in Middlesex County, Massachusetts, United States.  At the 2010 census, it had a population of 17,659.  The town, located in Boston's MetroWest, has a rich colonial history.

Harlowton, Montana: Harlowton is a city and is the county seat of Wheatland County, Montana, United States.  The population was 997 at the 2010 census.  The city was once the eastern terminus of electric operations (1914–74) of the Milwaukee Road railroad's "Pacific Extension" route, which went all the way to Avery, Idaho.  Here, steam or diesel locomotives were changed or hooked up to electric locomotives.  Harlowton was founded in 1900 as a station stop on the Montana Railroad, a predecessor to the Milwaukee, and was named for Richard A. Harlow, the Montana Railroad's president.

New Brunswick, New Jersey: New Brunswick is a city in Middlesex County, New Jersey, United States.  It is the county seat of Middlesex County, and the home of Rutgers University.  The city is on the Northeast Corridor rail line, 27 mi southwest of Manhattan, on the southern bank of the Raritan River.  At the 2010 United States Census, the population of New Brunswick was 55,181, reflecting an increase of 6,608 (+13.6%) from the 48,573 counted in the 2000 Census, which had in turn increased by 6,862 (+16.5%) from the 41,711 counted in the 1990 Census.  Due to the concentration of medical facilities in the area, including Robert Wood Johnson University Hospital and Saint Peter's University Hospital, as well as Rutgers, The State University of New Jersey's Robert Wood Johnson Medical School, New Brunswick is known as "the Hub City."  The corporate headquarters and production facilities of several global pharmaceutical companies are situated in the city, including Johnson & Johnson and Bristol-Myers Squibb.

Central Massachusetts Railroad: The Central Massachusetts Railroad was a railroad in Massachusetts.  The eastern terminus of the line was at North Cambridge Junction where it split off from the Middlesex Central Branch of the Boston and Lowell Railroad in North Cambridge and through which it had access to North Station in Boston.  From there, the route ran 98.77 miles west through the modern-day towns of Belmont, Waltham, Weston, Wayland, Sudbury, Hudson, Bolton, Berlin, Clinton, West Boylston, Holden, Rutland, Oakham, Barre, New Braintree, Hardwick, Ware, Palmer, Belchertown, Amherst, and Hadley to its western terminal junction at N. O. Tower in Northampton with the Connecticut River Railroad.

New Jersey Route 28: Route 28 is a state highway in the central part of New Jersey, United States that is 26.44 mi long.  Its western terminus is at U.S. Route 22 in Bridgewater Township, Somerset County while its eastern terminus is at Route 27 in Elizabeth, Union County.  From its western terminus, Route 28 heads east through Raritan, intersecting County Route 567 and then U.S. Route 202 and U.S. Route 206 at the Somerville Circle before heading through the central part of Somerville.  Past Somerville, the route interchanges with Interstate 287 in Bridgewater Township before intersecting many 500-series county roads including County Route 525 and County Route 527 in Bound Brook, County Route 529 in Dunellen, Middlesex County, County Route 531 in Plainfield, Union County, and County Route 509 in Westfield.  Route 28 continues east, intersecting Route 59 and the Garden State Parkway in Cranford before heading to Elizabeth, where it crosses Route 439 before ending at Route 27.  Route 28 is a two- to four-lane road its entire length that passes through suburban areas and runs within a close distance of New Jersey Transit’s Raritan Valley Line for much of its length.

Holliston, Massachusetts: Holliston is a New England town in Middlesex County, Massachusetts, United States in the Greater Boston area.  The population was 13,547 at the 2010 census.  It is part of the Massachusetts region, located due west of Boston, that is known as the MetroWest.  Holliston is the only town in Middlesex County that borders both Norfolk and Worcester counties.

Deltaville, Virginia: Deltaville is a small unincorporated community on the eastern tip of Middlesex County in the eastern part of the U.S. state of Virginia.  It is known for being a vacation spot for those looking for sailing, fishing, and other activities associated with the water.  The Middlesex County Board of Supervisors approved a resolution on October 2, 2012 supporting the efforts of the official naming, " Deltaville, The Boating Capital of the Chesapeake Bay."  Approximately 500-800 full-time residents call Deltaville home; however, the town's population swells to several thousand in the summer months.  Deltaville is also home to numerous retirees.  The Census Bureau defines Deltaville as a census-designated place (CDP) with a population of 1,119 as of 2010.  The town developed around being a large boat building area, mostly for commercial bay watermen.  However those days have passed and now the area is dotted with numerous marinas, boatyards, and marine related businesses.

Stingray Point, Virginia: Stingray Point is a small community on the Chesapeake Bay near the village of Deltaville in Middlesex County, Virginia.  It is located at the eastern terminus of State Route 33.  It is populated by fewer than 250 full-time residents; however, during summer months that population surges as tourists and vacationeers flock to Deltaville for recreation on the bay.  Most of the houses on Stingray Point are cottages & weekend homes.  Stingray Point is also home to Stingray Point Marina, one of the Deltaville area's many marinas.

Supporting paragraphs: Central Massachusetts Railroad Sudbury, Massachusetts
Answer: North Cambridge Junction