The University of Minnesota, Twin Cities (U of M) is a public research university located in Minneapolis and St. Paul, Minnesota, United States. It is the oldest and largest part of the University of Minnesota system and has the fourth-largest main campus student body in the United States, with 51,721 students in 2010–2011. The university is considered a Public Ivy by Green's Guide. The University of Minnesota is ranked among the top 25 of the nation's top research universities by the Center for Measuring University Performance, which takes into account total research, federal research, endowment assets, annual giving, National Academy members, faculty awards, doctorates granted, postdoctoral appointees, and undergraduate SAT/ACT range. The original Minneapolis campus overlooked the Saint Anthony Falls on the Mississippi River, but it was later moved about a mile downstream to its current location. The original site is now marked by a small park known as Chute Square at the intersection of University and Central Avenues. The school shut down following a financial crisis during the American Civil War, but reopened in 1867 with considerable financial help from Pillsbury.