I fly over this site quite a bit into and out of Salt Lake City. It is a damned deep hole in the ground. I think it's three-miles-wide at it's rim, but if we're not right over the top of it and banking, we can't see to the bottom.
bet it is not any less fascinating than pit just north of the BUR. my work sits right on the northern rim of it. I had no idea how close to it where I work and how deep that pit is until I flew over the area one day.