As with many of the boulders at Gloria's, this rock is conveniently identified by its graffiti (this one reads "END" in large red letters.) Here you'll find a few good slabby/vertical lines and a particularly excellent moderate bulge problem just to the left of the graffiti.
Getting There
Walk left from the Heart Cave, past the "A.C." boulder, until you come across the boulder with "END" in huge letters on the trail side. A little over 5 minutes from parking.