When flying into Vegas last time, I noticed massive spikes and holes south of the city (and I mean massive). I've had problems such as airports on plateaus (namely Denver, Vegas), but was unable to fix them. I want to do a flight today, and since it's been a while since I've done FS, I'm wondering if a fix for this has been developed yet? I use Ultimate Terrain, FS Gen landclass and mesh (freeware off of avsim). Thanks.

Look for an update at FSGenesis, in your account will show updates available.