Heron's Fissure is the right leaning crack just to the right of the cave, that passes through the huecoed face. Moves are fun stemming, and the crack is wide hands to fists and provides good pro the whole way. The big huecos are neat, and not as positive as they appear from below.
Because the bottom 15' of this climb is very easy blocky scrambling... this climb feels shorter than most at Potrillo.