Question: Dartmouth College with its 269 acre campus centered on the Green is located near which river in New Hampshire?

Context paragraphs:
Seal of Dartmouth College: The Seal of Dartmouth College is the official insignia of Dartmouth College, an Ivy League university located in Hanover, New Hampshire, United States.  Anglo-American law generally requires a corporate body to seek official government sanction, usually in the form of a charter, in order to operate.  Such chartered bodies normally authenticate their official acts by marking them with a distinctive seal.  The seal's design is usually complicated to avoid counterfeiting, but it can also express something about the institution's history or mission.  Dartmouth College is one such chartered body, and it obtained its official seal in 1773.

Phi Tau: Phi Tau (ΦΤ) is a coeducational fraternity at Dartmouth College in Hanover, New Hampshire, USA.  Founded in 1905 as the Tau Chapter of Phi Sigma Kappa, the organization separated from the national fraternity in 1956 over a dispute regarding the segregationist membership policies of the national organization.  The fraternity renamed itself Phi Tau Fraternity, and in 1972 became the first fraternity at Dartmouth to admit women student members.  Today, Phi Tau Coeducational Fraternity is one of only three remaining, officially recognized coeducational Greek organizations on the Dartmouth College campus.

The Green (Dartmouth College): The Green (formally the College Green) is a grass-covered field and common space at the center of Dartmouth College, an Ivy League university located in Hanover, New Hampshire, United States.  It was among the first parcels of land obtained by the College upon its founding in 1769, and is the only creation of the 18th century remaining at the center of the campus.  After being cleared of pine trees, it initially served as a pasture and later as an athletic field for College sporting events.  Today, it is a central location for rallies, celebrations, and demonstrations, and serves as a general, all-purpose recreation area.  The College describes the Green as "historic" and as the "emotional center" of the institution.

Dartmouth Big Green: The Dartmouth College Big Green are the varsity and club athletic teams of Dartmouth College, an American university located in Hanover, New Hampshire.  Dartmouth's teams compete in the Ivy League conference of the National Collegiate Athletic Association (NCAA) Division I, as well as in the ECAC Hockey conference.  The College offers 34 varsity teams, 17 club sports, and 24 intramural teams.  Sports teams are heavily ingrained in the culture of the College and serve as a social outlet, with 75% of the student body participating in some form of athletics.

Dartmouth–Hitchcock Medical Center: Dartmouth–Hitchcock Medical Center (DHMC) is the U.S. state of New Hampshire's only academic medical center.  It is headquartered in Lebanon, New Hampshire on a 225 acre campus in the heart of the Upper Connecticut River Valley.  DHMC is New Hampshire's only Level I Trauma Center, one of only three in northern New England, and it includes New Hampshire's only air ambulance service.

List of Dartmouth College faculty: This list of Dartmouth College faculty includes current and former instructors and administrators of Dartmouth College, an Ivy League university located in Hanover, New Hampshire, United States.  It includes faculty at its related graduate schools and programs, including the Tuck School of Business, the Thayer School of Engineering, and Dartmouth Medical School.  s of 2007 , Dartmouth employs 597 tenured or tenure-track faculty members, 366 of whom are in the undergraduate Arts & Sciences division.  More than 90% of the faculty hold a doctorate or equivalent degree.

Alma Mater (Dartmouth College): The "Alma Mater" is the official school song of Dartmouth College, an Ivy League university located in Hanover, New Hampshire, United States.  Composed by Harry Wellman, class of 1907, it was officially adopted by the College in 1926.  The difficult to sing "Dartmouth Undying" replaced it in the fall of 1972, but the Alma Mater was restored as the official song in early 1973.  Richard Hovey of the class of 1885 wrote the original lyrics in 1894, titling the song "Men of Dartmouth".  Traditionally the original second verse was only sung during time of war.  On May 28, 1988, Dartmouth changed the title and words to reflect the presence of women as part of the College, since Dartmouth had become coeducational in 1972.  Nicole Sakowitz, Dartmouth Glee Club President was the first person to conduct the new Alma Mater.

Burnham Field: Burnham Field is a soccer-specific stadium located on the campus of Dartmouth College in Hanover, New Hampshire, and used exclusively for Dartmouth's men's and women's soccer teams.  The field was finished in time for the 2007 college soccer season and includes full lighting, 1,600-seat stands, a press box and a level 10 natural grass playing surface.  It is named after Whitey Burnham who was the Dartmouth men's coach from 1960–1989 and who led the Big Green to its first Ivy League soccer championship in 1964.  The complex cost over $4.5 million to build and includes a state-of-the-art locker and training room that is shared with the men's lacrosse team.

Arlington Mill Reservoir: Arlington Mill Reservoir, known locally as Arlington Pond, is a 269 acre impoundment located in Rockingham County in southern New Hampshire, United States, in the town of Salem.  It is located along the Spicket River, a small stream that flows south to the Merrimack River in Lawrence, Massachusetts.

Campus of Dartmouth College: Dartmouth College is located in the rural town of Hanover in the Upper Valley of the Connecticut River in the New England state of New Hampshire.  Dartmouth's 269 acre campus centered on The Green makes the institution the largest private landowner of the town of Hanover, and its landholdings and facilities are valued at an estimated $419 million.  Dartmouth's campus buildings vary in age from several early 19th century buildings to a number of ongoing construction projects.  Most of Dartmouth's buildings are designed in the Georgian style, a theme which has been preserved in recent architectural additions.

Supporting paragraphs: Campus of Dartmouth College The Green (Dartmouth College)
Answer: Connecticut River