; and (B) any land located within the Replacement Area that is held in trust after being taken into trust by the Secretary for the benefit of the Tribe pursuant to section 4(b). (4) Replacement area The term Replacement Area means the aboriginal territory of the Tribe, located in the State near Shabbona, which is all of the land contained within the area that is bounded as follows: (A) On the north by Interstate 88. (B) On the west by Interstate 39. (C) On the south by State Route 30 and Preserve Road. (D) On the east by South 4th Street and State Route 23. (5) Repurchased Lands The term Repurchased Lands means the approximately 129 acres of land purchased and owned by the Tribe within the Reservation as of the date of enactment of this Act. (6) Reservation The term Reservation means the approximately 1,280 acres of land in the State— (A) reserved in the Treaty of July 29, 1829, made and concluded at Prairie du Chien (7 Stat. 320) (commonly known as the Second Treaty of Prairie du Chien ) and the Treaty of September 26, 1833, made at Chicago (7 Stat. 431) (commonly known as the Treaty of Chicago )