The City of Rifle is a Home Rule Municipality in Garfield County, Colorado, United States. The population was 9,172 at the 2010 census. Rifle is a regional center of the cattle ranching industry located along Interstate 70 and the Colorado River just east of the Roan Plateau, which dominates the western skyline of the town. The town was founded in 1882 by Abram Maxfield, and was incorporated in 1904 along Rifle Creek, near its mouth on the Colorado. Rifle Creek is named for an incident involving trappers in the late 19th century. According to local lore, one of the trappers accidentally left his rifle along the creek, giving it its name.