this is NOT for the uninitiated, and it is NOT advisable to go alone - generally, groups enter Bull Valley along the trail shown, go down the canyon a ways, then return the way they came - it's a VERY muddy slot canyon that takes a while to dry out in spring, and then there are a lot of flies. DO NOT downclimb anything you cannot get back up (there's a steep dropoff into mud which requires ropes or assistance to get back up, and there may or may not be a rope there), and if you go alone you could easily get stuck down there. plan to get very dirty, tell someone where you are going, and always ask re conditions at the Visitor Center in Cannonville first