Levitated Mass, by Michael Heizer

I'm eager to see this piece Levitated Mass by Michael Heizer at LACMA. I'm interested in the enormity of the boulder in the piece. It's interesting that this boulder will not move from the site unless some catastrophic natural event dislodges it, or if there is a large human effort equal to the one that put it there in the first place. The geologic permanence of the piece resonates with the natural history of the LaBrea Tar Pits, which are right next door.