World History Maps Interactive Historical Atlas of the Civil War, detail page for:

US Army Department of the Northwest forces, Aug 20, 1862 - Nov 10, 1862
US Army Department of the Northwest forces, Jun 16, 1863 - Sep 12, 1863
US Army Department of the Northwest forces, Jun 30, 1863 - Sep 11, 1863
US Army Department of the Northwest forces, Jun 5, 1864 - Aug 12, 1864

The Sioux Indian War, Aug 12, 1862 - Aug 12, 1864
Fort Ridgely, battle, Aug 20, 1862 - Aug 22, 1862
Henry H. Sibley Commander, Aug 20, 1862 - Nov 10, 1862
Wood Lake, battle, Sep 23, 1862

Henry H. Sibley Commander, Jun 16, 1863 - Sep 12, 1863
Dead Buffalo Lake, action, Jun 26, 1863
Stony Lake, action, Jun 28, 1863
Alfred Sully Commander, Jun 30, 1863 - Sep 11, 1863
Big Mound, battle, Jul 24, 1863 - Jul 25, 1863
Whitestone Hill, battle, Sep 3, 1863 - Sep 5, 1863

Alfred Sully Commander, Jun 5, 1864 - Aug 12, 1864
Killdeer Mountain, battle, Jul 28, 1864 - Jul 29, 1864