NP:
Fact is, no one has to get lost or die in any attempt to find hearts and stuff in the Superstitions.
No doubt thousands have looked up at this one for example, and like yourself, have never noticed it.
At least I don't believe I've ever heard it mentioned by anyone before. Despite it being one of the better "hearts" out there, and also located within a stones throw of Tortilla and Mormon Flats.
Even Barry Storm, who wrote his book while camped in a cave a bit to the east, made no mention of it. But you should already know all that history...right ?
Somewhere up behind the heart is an intersection of three fault lines and,according to a USGS report, a "volcanic vent". This is not to say that I believe this heart to be the one shown on the Stone Maps. I'm sure that it is not, despite the other "symbols" visible in this photo .... having looked around already.

But you can go have a great burger and a beer after you spend a few minutes leaning up against your car whilst taking in the view.

Regards:SH.