Camp Collins (also known as the Fort Collins Military Reservation) was a 19th-century outpost of the United States Army in the Colorado Territory. The fort was commissioned in the summer of 1862 to protect the Overland Trail from attacks by Native Americans in a conflict that later became known as the Colorado War. Located along the Cache la Poudre River in Larimer County, it was relocated from its initial location near Laporte after a devastating flood. Its second location downstream on the Poudre was used until 1866 and became the nucleus around which the City of Fort Collins was founded. History Laporte location (1862–1864) The camp was commissioned on July 22, 1862, and later named for Lt. Col. William O. Collins, colonel of the 11th Ohio Cavalry and the commandant of Fort Laramie, the headquarters of the U.S. Army's West Sub-district of the District of Nebraska. The initial camp at Laporte was constructed and manned by Company B, 9th Kansas Cavalry. The mission of the fort was to protect the emigrant trains and Overland Stage lines on the Overland Trail from the growing hostile attacks of the Plains Indians. The growing hostility of the Lakota to white encroachment further north had forced the temporary relocation of the Emigrant Trail from the North Platte River to the South Platte valley. Although relations with the Arapaho and Cheyenne in the vicinity of the camp were largely peaceful, the hostility of the Pawnee and other tribes on the Colorado Eastern Plains towards white settlement prompted the Army to establish the fort as a precautionary measure to protect the trail. The camp was founded near the existing settlement of Laporte (originally Colona) that had been founded four years earlier in 1858 by Antoine Janis and other homesteaders from Fort Laramie. Although the region was not part of the Colorado Gold Rush that erupted the following year, the fertile lands of the Colorado Piedmont along the Poudre attracted a growing number of homesteaders in the mid-1860s. The Arapaho continued to live in villages along the Poudre near the mountains, coexisting peacefully with the settlers, despite the loss of their hunting grounds on the eastern plains in 1861 by treaty with the U.S. government. During its first two years, the fort remained a somewhat peaceful outpost. The fort saw little direct action during its commission and was never stockaded with walls. In the fall of 1862,