Sully's troops, composed of the Sixth and Seventh Iowa Cavalry, the Second Nebraska Cavalry, and the artillery battery, moved in on the Indians, who at the time had discovered the troops' presence, and the vast majority of them were preparing to flee. Negotiations broke down when the Native Americans refused the demand of unconditional surrender. After the attack, the Sioux were forced out of their camp, leaving many of their belongings and crucial supplies for the winter, including hundreds of pounds of buffalo meat. The Sioux attempted a counterattack, wounding and killing a few more soldiers, but this action had little effect on the outcome of the conflict.
The army's casualties were very light compared to the Sioux, twenty men to 150 or more, and also many prisoners were taken. their winter supplies were burned or destroyed. The battle represented a nearly complete victory for American troops, whose objective of putting down Indian resistance to settlers and westward expansion was what drove Sulley's campaign.
Whitestone Battlefield State Historic Site serves to remember the lives lost at the site on both sides. A large monument erected in 1909 stands to remember the troops that lost their lives for their country. A monument is also in place to remember the Sioux who were lost in the bloodshed. The museum, built in 1941, contains exhibits on the battle as well as Sulley and Sibley's campaigns into North Dakota in 1863.
In contrast to the bloodshed that took place at this site, the area is now part of Whitestone Battlefield State Park which offers a picnic area and place to reflect upon the tragedy that occurred on the grassy battlefield near the lake.