Research Plot 2, located near Centennial Ave. and 18th St. N. on the North Dakota State University campus in Fargo, North Dakota. The plot was established in 1882 on land that was broken from native prairie sod. It has been sown to spring wheat continuously since that date. The plot was listed on the National Register of Historic Places in 1991 as Agricultural Research Site, but has historically been known as Research Plot 2.