Question: Dartmouth Big Green men's basketball represents a college located in what county?

Context paragraphs:
Dartmouth Big Green men's lacrosse: The Dartmouth Big Green men's lacrosse team represents Dartmouth College in National Collegiate Athletic Association (NCAA) Division I men's lacrosse.  Dartmouth competes as a member of the Ivy League and plays its home games at Scully-Fahey Field in Hanover, New Hampshire.

2013–14 Dartmouth Big Green men's basketball team: The 2013–14 Dartmouth Big Green men's basketball team represented Dartmouth College during the 2013–14 NCAA Division I men's basketball season.  The Big Green, led by fourth year head coach Paul Cormier, played their home games at Leede Arena and were members of the Ivy League.  They finished the season 12–16, 5–9 in Ivy League play to finish in a tie for sixth place.

Hanover, New Hampshire: Hanover is a town along the Connecticut River in Grafton County, New Hampshire, United States.  The population was 11,260 at the 2010 census.  CNN and "Money" magazine rated Hanover the sixth best place to live in America in 2011, and the second best in 2007.  "This just might be the best college town," read the headline of a story in the January-February 2017 issue of "Yankee".

Dartmouth–Yale football rivalry: The Dartmouth–Yale football rivalry is an American college football rivalry between the Dartmouth Big Green and Yale Bulldogs.  The first meeting between the two teams was October 25, 1884.  The final score of the first meeting was 113–0, making it one of the most lopsided victories in the history of college football.  The latest meeting between the teams was October 8, 2016, where the Yale Bulldogs defeated the Dartmouth Big Green 21–13.

2012–13 Dartmouth Big Green men's basketball team: The 2012–13 Dartmouth Big Green men's basketball team represented Dartmouth College during the 2012–13 NCAA Division I men's basketball season.  The Big Green, led by third year head coach Paul Cormier, played their home games at Leede Arena and were members of the Ivy League.  They finished the season 9–19, 5–9 in Ivy League play to finish in a tie for sixth place.

2015–16 Dartmouth Big Green men's basketball team: The 2015–16 Dartmouth Big Green men's basketball team represented Dartmouth College during the 2015–16 NCAA Division I men's basketball season.  The Big Green, led by sixth-year head coach Paul Cormier, played their home games at Leede Arena in Hanover, New Hampshire and were members of the Ivy League.  The Big Green finished the season 10–18, 4–10 in Ivy League play to finish in sixth place.

2016–17 Dartmouth Big Green men's basketball team: The 2016–17 Dartmouth Big Green men's basketball team represented Dartmouth College during the 2016–17 NCAA Division I men's basketball season.  The Big Green, led by first-year head coach David McLaughlin, played their home games at Leede Arena in Hanover, New Hampshire and were members of the Ivy League.  They finished the season 7–20, 4–10 in Ivy League play to finish in a three-way tie for last place.  They failed to qualify for the inaugural Ivy League Tournament.

Dartmouth Big Green men's basketball: The Dartmouth Big Green men's basketball team is the basketball team that represents Dartmouth College in Hanover, New Hampshire, United States.  The school's team currently competes in the Ivy League.

2014–15 Dartmouth Big Green men's basketball team: The 2014–15 Dartmouth Big Green men's basketball team represented Dartmouth College during the 2014–15 NCAA Division I men's basketball season.  The Big Green, led by fifth year head coach Paul Cormier, played their home games at Leede Arena and were members of the Ivy League.  They finished the season 14–15, 7–7 in Ivy League play to finish in fourth place.  They were invited to the CollegeInsider.com Tournament, their first postseason appearance since 1959, where they lost in the first round to Canisius.

Dartmouth Big Green men's ice hockey: The Dartmouth Big Green men's ice hockey team is a National Collegiate Athletic Association (NCAA) Division I college ice hockey program that represents Dartmouth College.  The Big Green are a member of ECAC Hockey.  They play at the Thompson Arena in Hanover, New Hampshire.

Supporting paragraphs: Dartmouth Big Green men's basketball Hanover, New Hampshire
Answer: Grafton County