The following area is excluded from the park: That portion of section 8 lying southwest of a line between the common corner of sections 8, 9, 16, and 17 and the northwest corner of the southwest quarter section 8; that portion of section 16 lying southwest of a line between the southeast corner southwest quarter and the northwest corner southwest quarter section 16; and section 17, township 147 north, range 100 west, fifth principal meridian, North Dakota.