Based on pictures it doesn't look too hairy aside from the dropoffs that don't really make it harder, just scarier. I dunno. If a full size Hummer can do it which many seem able based on pictures I don't see why a qualified driver in an adequate full size truck couldn't also (meaning some skills and good tires, obviously 4wd with low range - better yet with lockers and swaybars disconnected).
Years ago I had a mildly modded Xterra and there were a lot of guys with similar rigs from CO who ran it successfully. My current truck isn't as good offroad just from a size and weight standpoint, but it does have some advantages with bigger tires, more torque and solid axles on both ends compared to my old X.