This Colorado state park brings visitors year-round for all types of recreation. We have traveled here several times, both tent camping and in our camper. The views range from evergreens and aspen to Pikes Peak. Camping is a pleasure with electric hookups at several sites, a camper services station with showers, flush toilets, laundry, and a dump station with water filling. Water spigots are located throughout the park, but are not for camper filling. The rangers are consistently pleasant. Since the park is at 9,000 feet, bears and sporadic weather are present. The hiking trails are well-marked and lead to various ponds, abandoned buildings (from when this was a ranch) and an abundance of wildflowers. Fall is especially beautiful when the aspens turn gold. Winter camping is available and perfectly situated near sledding hills. There are several well-maintained picnic areas and a visitors center where you can learn about the wildlife and geology and purchase a few trinkets or the sweatshirt you will need by nightfall. There are no "bad" spots in this park. We particularly like 120, at the end of the loop. It is quiet and close to several trailheads. For more reviews of Mueller, see minnieoutwest.com.