I know Devil's Den does sound ominous, but I was thinking that in July it probably means "hotter than hades" . From what I've seen and read the hiking/biking looks great - there are even caves to explore. There is a pool (hooray!) and a lake (double hooray!) and even sites to bring your horses. We are taking the RV along with some other families and the rest are staying at the cabins there. The style of everything looks like an old CCC built campground. However, there is only one way that RV's can enter since the main road in is one-lane, winding and hilly - unfortunately it takes an extra hour to go the long way and enter from the north (and of course we are coming from Texas which is on the wrong side) and they warn you to GAS UP since the last known gas station is quite a ways from the campground.