Gen. Atkinson and U.S. troops leave Fort Armstrong at 9:30 A.M. aboard Java, arriving at old Sauk village at 11 A.M. U.S. troops join volunteers at Rapids of Rock River, but steamboat is unable to pass rapids.Illinois Advocate, 15 May 1832; IHi—BHWC, Johnston Journal; Journal of Felix St. Vrain, Photocopy.