rode first down the Tongue, then to the headwaters of Otter Creek, reaching it on March 16. On the 16th, scout Frank Grouard spotted two Oglala Lakota warriors observing the soldiers. Because of this, Grouard believed that the Oglala Lakota camp of the war chief Crazy Horse might be nearby. This was reported to Crook, and at 5 p.m. on March 16, he divided his command and sent Colonel Joseph J. Reynolds (a West Point classmate of President Ulysses S. Grant, and a combat veteran of both the Mexican–American War, and Civil War) on a night march with about 379 men, supplying them with rations for one day, and following the trail of the two Oglala's southeast toward the Powder River. General Crook kept with him about 300 of the expedition's men and the pack train, with which he planned to rendezvous with Reynolds at the mouth of Lodge Pole Creek on the 17th. During the night Frank Grouard and the other scouts led Reynolds's advance and followed the two warriors's trail in the snow. It led to what they were looking for, a Cheyenne and Lakota Sioux Indian village, which they described as containing more than 100 lodges on the west bank of Powder River. The scouts immediately reported this information back to Colonel Reynolds. Battle of Powder River The village, however, was somewhat further north than anticipated, with the result that initially only Captain James Egan's 2nd Cavalry Company K, of 47 men, including Second Lieutenant John G. Bourke, charged into the village from the south, while the other companies were delayed by the distance and rough terrain. The soldiers were under fire for approximately five hours when, at about 2:30 p.m., with the destruction of the village complete, Reynolds ordered his soldiers to withdraw. Over 700 Indian ponies had been captured. In his premature haste to withdraw, the command left behind the bodies of its three dead soldiers, with one in the village, and two at a field hospital as well as Private Lorenzo E. Ayers, who was badly wounded and subsequently killed by vengeful Indians. The men made their way across to the east side of the frozen Powder River, withdrawing south. Reynolds's command withdrew about south that afternoon and evening, crossing and recrossing the frozen Powder River when necessary, up the river to the confluence of the Powder and Lodge Pole Creek, arriving there after