Rutgers University–New Brunswick is the largest campus of Rutgers University, a public land-grant research university consisting of three major campuses in New Jersey. It is located primarily in New Brunswick and Piscataway. It is the oldest and flagship campus of the university, the other satellite campuses being in Camden and Newark. The New Brunswick campus is composed of several smaller campuses that are some distances away from each other: College Avenue, Busch, Livingston, Cook, and Douglass, the latter two sometimes referred to as "Cook/Douglass", as they are adjacent and intertwined. All of these campuses lie along State Route 18. Rutgers–New Brunswick also includes several buildings in downtown New Brunswick.