With Momma I can fly

The crux comes after the crack begins to peter out, before you get established on the crimps up on the headwall. You should be extremely comfortable in the grade if you plan to boulder this, otherwise you can string up a top rope for the route. 

On the Gorge side of the park approach from the trail after reaching the dam before the bridge head up (right) the path along shale river bed. You will reach a large cave that perpetually seeps, the boulder is on climbers right side of the cave. 

A few pads and a good spotter. Or a top rope.