This review is for the Butterfield Trail in Devils Den. You have to hike in to get to theses spots. If you start at the traditional Devils Den and park at the pedestrian bridge you have a nice challenging hike up to the back country portion of the park. You start hiking along a river and after a mile or so you start your upward journey. The trail is generally in good shape but if it has been raining, beware as some of the trail is also used for horses which makes the trail sometimes tough to make it through as it gets pretty mushy. My favorite spot is about halfway through right on a river that flows a blueish color that doesn't make you want to even filter and drink the water. The spots are level and secluded but you sometimes find trash as people don't abide by the leave no trace principle. I bring all my own water on the trail but there are a few spots you can filter. We have found many snakes here and some are poisonous. BEWARE! The geography has is pretty unique and flash flooding is common. Be very aware of your surroundings and watch the river if you are in a rain storm. You must check in at the ranger's station before you do any back country camping in the park. The trail is a pleasant longer trail in the area and is a must but I would recommend trying this trail in the Spring or late fall.