Assuming the "monolith" is around 10ft tall with a 1.5ft square base, it would weigh 5 tonnes if it were made of solid steel. Whoever installed it would have needed serious machinery to haul it over there and stick it in the rock.
Thin sheets of metal, either welded or riveted together, would have been much easier to build and install. It could even have been filled with some other material (e.g. sand) before the top was put on.
> Thin sheets of metal, either welded or riveted together, would have been much easier to build and install. It could even have been filled with some other material (e.g. sand) before the top was put on.
Yes, it was a prism shaped object with 3 pieces of stainless steel panels riveted together, the bottom has concret and silicone:)
