battle, nineteenth century

Battle of Killdeer Mountain

Name: Battle of Killdeer Mountain
Start: 1864-07-28
Location: Dakota Territory, North Dakota, United States

Battle of Killdeer Mountain was a battle fought on 28 July 1864 at Dakota Territory, in what is now North Dakota, United States; it lasted 1 day. It was part of the Sioux Wars, which ran from 1854 to 1891. The recorded result: United States victory. Recorded strength: 2,200 against 1,600 or more.

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Killdeer Mountain battlefield site. Matthew Borders, Public domain, via Wikimedia Commons.

Fought28 July 1864lasted 1 day

WhereDakota Territory, North Dakota, United States47.421N, 102.917W

OutcomeUnited States victory

BelligerentsUnited States of AmericaagainstLakota, Yanktonai, Santee Dakota

Casualties and losses5 dead, 10 wounded.and31 dead possibly more

Battlefield todayKilldeer Mountain battlefieldNPS site ND005, 37,678 acres studied, 11,763 core

Part ofSioux Wars1854 to 1891

Where it sits in the Sioux Wars

8 placed engagements of the Sioux Wars in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date	28 July 1864 to 29 July 1864
Place	Dakota Territory, North Dakota, United States 47.421N, 102.917W
Kind	Battle, nineteenth century
Strength	2,200	1,600 or more
Casualties and losses	5 dead, 10 wounded.	31 dead possibly more
Commanders	Alfred Sully	Gall (Native American leader) Sitting Bull Inkpaduta

The recorded site, with the nearest other engagements in the atlas. The dashed outline is the battlefield study area mapped by the NPS American Battlefield Protection Program. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

Battle of the Badlands 1864, 84 km SW
Battle of Grand Coteau 1851, 143 km NE
Battle of Slim Buttes 1876, 209 km S
Battle of Stony Lake 1863, 216 km E
Battle of Dead Buffalo Lake 1863, 244 km E

In the same war

Before: Battle of Whitestone Hill 3 September 1863
After: Battle of the Badlands 7 August 1864
All 8 engagements of Sioux Wars

Elsewhere in 1864

Battle of Cold Harbor United States
Battle of the Wilderness United States
Battle of Spotsylvania Court House United States
Siege of Petersburg United States
Battle of Dybbøl Denmark

The National Park Service's American Battlefield Protection Program maps this as the Killdeer Mountain battlefield (site ND005): a study area of 37,678 acres, with a core area of 11,763 acres where the fighting was concentrated; 37,677 acres retain enough integrity to be potentially eligible for the National Register.

Battle of Killdeer Mountain is one of 3,507 engagements of the 19th century in the atlas and one of 1,148 in present-day United States (7 in North Dakota).

Sources

Identity, coordinates, dates and the war from Wikidata Q742287, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of Killdeer Mountain, revision 1380654635, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Battlefield boundary and area from the National Park Service American Battlefield Protection Program (public domain). Dates before 1582 follow the Julian calendar as recorded.