Question: Mackenzie Stadium is played in by the team that is part of what Division III conference based in the northeast?

Context paragraphs:
2005 NCAA Division III football season: The 2005 NCAA Division III football season, part of the college football season organized by the NCAA at the Division III level in the United States, began in August 2005, and concluded with the NCAA Division III Football Championship, also known as the Stagg Bowl, in December 2005 at Salem Football Stadium in Salem, Virginia.  The Mount Union Purple Raiders won their eighth Division III championship by defeating the Wisconsin–Whitewater Warhawks, 35−28.  This was the first of eight subsequent championship games between Mount Union (3 wins) and Wisconsin–Whitewater (5 wins); only the 2012 Stagg Bowl featured a different team.

Mackenzie Stadium: Mackenzie Stadium is a baseball venue located in Holyoke, Massachusetts.  It was home to the Holyoke Millers and today is used by both the Valley Blue Sox of the New England Collegiate Baseball League (since 2008) and the Elms College Blazers of the New England Collegiate Conference (since 2005).  It was built in 1933 and has a capacity of 4,100 people.

1994 NCAA Division III football season: The 1994 NCAA Division III football season, part of the college football season organized by the NCAA at the Division III level in the United States, began in August 1994, and concluded with the NCAA Division III Football Championship, also known as the Stagg Bowl, in December 1994 at Salem Football Stadium in Salem, Virginia.  The Albion Britons won their first Division III championship by defeating the Washington & Jefferson Presidents, 38−15.  The Gagliardi Trophy, given to the most outstanding player in Division III football, was awarded to Carey Bender, running back from Coe.

New England Collegiate Conference: The New England Collegiate Conference (NECC) is an NCAA Division III college athletic conference based in the Northeastern United States.

1973 NCAA Division III football season: The 1973 NCAA Division III football season, part of college football in the United States organized by the National Collegiate Athletic Association at the Division III level, began in August 1973, and concluded with the NCAA Division III Football Championship in December 1973 at Garrett-Harrison Stadium in Phenix City, Alabama.  This was the first season for Division III (and Division II) football, which were formerly in the College Division in 1972 and prior.

1996 NCAA Division III football season: The 1996 NCAA Division III football season, part of the college football season organized by the NCAA at the Division III level in the United States, began in August 1996, and concluded with the NCAA Division III Football Championship, also known as the Stagg Bowl, in December 1996 at Salem Football Stadium in Salem, Virginia.  The Mount Union Purple Raiders won their second Division III championship by defeating the Rowan Profs, 56−24.  The Gagliardi Trophy, given to the most outstanding player in Division III football, was awarded to Lon Erickson, quarterback from Illinois Wesleyan.

NECVA Championship Tournament: The NECVA Championship Tournament was the culminating event of the season for the North East Collegiate Volleyball Association, an NCAA Division III conference that only sponsored men's volleyball.  The tournament was held annually in April, and its location was selected by the NECVA Executive Board from a pool of hosting bids.  By the time of its final edition in 2011, the tournament featured 16 of the conference's 43 member schools—the top two in each of five divisions (CUNYAC, GNAC, Metro, New England, and Western), plus six at-large selections.  The NECVA champion tournament received one of four automatic bids to the Molten Division III Final Four later in April.

NCAA Division III women's ice hockey: As of the 2011-2012 season, there were 49 teams competing in NCAA Division III women’s hockey in five conferences.  In addition, there were three colleges who are not in Division III who compete primarily against Division 3 schools (and participate in a Division III conference), bringing the total number of teams competing in regular season play to 52 schools (there is one Division 1 team, and two Division 2 teams who play predominantly Division 3 schedules).  Many NCAA Division III schools are smaller than NCAA Division 1 colleges, though size is not the determining factor.  There is a mix of private colleges and public colleges (and universities) among the NCAA Division III schools.  Some women student-athletes play two sports in NCAA Division III, though it remains a challenge to mix hockey and another sport because as a winter sport, hockey will still overlap with a fall or spring sport.

1995 NCAA Division III football season: The 1995 NCAA Division III football season, part of the college football season organized by the NCAA at the Division III level in the United States, began in August 1995, and concluded with the NCAA Division III Football Championship, also known as the Stagg Bowl, in December 1995 at Salem Football Stadium in Salem, Virginia.  The Wisconsin–La Crosse Eagles won their second Division III championship by defeating the Rowan Profs, 36−7.  The Gagliardi Trophy, given to the most outstanding player in Division III football, was awarded to Chris Palmer, wide receiver from St. John's (MN).

2012 NCAA Division III football season: The 2012 NCAA Division III football season, part of the college football season organized by the NCAA at the Division III level in the United States, began in August 2012, and concluded with the NCAA Division III Football Championship, also known as the Stagg Bowl, in December 2012 at Salem Football Stadium in Salem, Virginia.  The Mount Union Purple Raiders won their eleventh Division III championship by defeating the St. Thomas (MN) Tommies, 28−10.

Supporting paragraphs: Mackenzie Stadium New England Collegiate Conference
Answer: New England Collegiate Conference