What you are looking at is the conveyor belt system in the concrete/asphalt plant. This was built sometime in the 90's to supply concrete for the new
runway and later the new taxiway.
Cool, Thanks Gfad! I've never seen this before. If Groom has it's own Concrete and asphalt plant, that would suggest they plan to do some
large-scale expansion.
The concrete and asphalt batch plants have been at Area 51 for many years. They were put to good use during construction of runways, taxiways,
parking aprons and various other facilities.