1139 Series I Volume XLVIII-II Serial 102 - Powder River Expedition Part II Prev Next Page 1139 Chapter LX. CORRESPONDENCE, ETC. -UNION. Sketch of part of Devil's Lake explored, by order of Bvt. Major General A. Sully, by H. von Minden, major and acting topographical engineer, July, 1865. [Map] Page 1139 Chapter LX. CORRESPONDENCE, ETC. -UNION.