Well, it's not really a 5.7, but that's part of the charm of Carderock, isn't it? Work the semi-polished corner with a mixture of stemming, face-holding, and jamming. The rock is bullet hard and clean, like most of Carderock. Pretty cool route that is unexpectedly technical and demanding for the grade.
Right of The Dream roof on the Jungle Cliff (left side of Carderock). Look for a prominent, right facing corner with an easy start and a gentle overhang for most of the second half.
TR, though I think it would take gear reasonably well for the solid leader.