Arapahoe County: Smoky Hill Ridge is a 1 mile out and back trail located near Aurora, CO and is good for all skill levels. The trail is primarily used for hiking and road biking and is accessible year-round. 1.0 miles 105 feet Out & Back kid friendly hiking road biking Expand Map Sign up now to see this map! Reviews (0)Photos (0)Recordings (0)No one has reviewed this trail yet. Be the first!