We're nearing Hoover Dam!Some way northeast lies Callville Bay, a rest and recreation area. While you can't see the dam in the IRL shot, it's there, just beyond your field of vision. It seems the nuclear wars took out a large chunk of the eastern coastline in FNV.
One thing to note here is the "watermark" on Lake Mead. See the cleaner-looking rock dilineated by a horizontal line? That's how far the waters have dropped in our world. It's a real problem for future generations if it continues; many blame global warming. The waters seem to be at a higher level in FNV, though.