What caught my attention were those rocks creating the wall in center and then the boulder to the right too.

But, as the short story goes, these underground intrusions steadily forced their way up towards the surface, coursing through an overlaying formation of gneiss today called the "Pinto." As the molten granite cooled, it also cracked to form loose joints in the resulting formations.

Then, as erosion came into play, the surrounding soils slowly were washed away, the joints expanded, and the monzogranite's angular shoulders became rounded, almost as if someone used a sanding block to take their edges off. While much of the central core remained intact, many of the outer edges broke off to create the rubble seen today.