Meanwhile, after Chivington and his detachment had left in the morning, Colonel Slough with the main body proceeded up the canyon, and arriving at Pigeon's Ranch, gave orders for the troops to stack arms in the road and supply their canteens with water, as that would be the last opportunity before reaching the further end of Apache Canyon. While thus supplying themselves with water and visiting the wounded in the hospital at Pigeon's Ranch, being entirely off their guard, they were suddenly startled by a courier from the advance column dashing down the road at full speed and informing them that the enemy was close at hand. Orders were immediately given to fall in and take arms, but before the order could be obeyed the enemy had formed battery and commenced shelling them. They formed as quickly as possible, the colonel ordering Captain Downing with Company D, First Colorado Volunteers, to advance on the left, and Captain Kerber with Company I First Colorado, to advance on the right. In the meantime Ritter and Claflin opened a return fire on the enemy with their batteries. Captain Downing advanced and fought desperately, meeting a largely superior force in point of numbers, until he was almost overpowered and surrounded; when, happily, Captain Wilder of Company G of the First Colorado, with a detachment of his command, came to his relief, and extricated him and that portion of his Company not already slaughtered. While on the opposite side, the right, Company I had advanced into an open space, feeling the enemy, and ambitious of capturing his battery, when they were surprised by a detachment which was concealed in an arroya, and which, when Kerber and his men were within forty feet of it, opened a galling fire upon them. Kerber lost heavily; Lieutenant Baker, being wounded, fell back. In the meantime the enemy masked, and made five successive charges on our batteries, determined to capture them as they had captured Canby's at Valverde. At one time they were within forty yards of Slough's batteries, their slouch hats drawn down over their faces, and rushing on with deafening yells. It seemed inevitable that they would make the capture, when Captain Claflin gave the order to cease firing, and Captain Samuel Robbins with his company, K of the First Colorado, arose from the ground like ghosts, delivering a galling fire, charged bayonets, and on the double-quick put the rebels to flight.