when i was there i seen a couple of jeeps and a blazer but that was it no one else and there was a truck and trailer in the parking lot but nobody or rig around it
i know the area verry well and your right meat it dont take long to do the snake i think you can be trough the whole trail in about 20 min (depending on how many rigs go out) but i dont know constrictor i have not done more then 100 feet of that trail. i will be at the trail head sunday by...
the manning track is about 5 mins west of cedar fort follow the highway and the first dirt road on the right take it, but don't get caught there are patrols from what i have been told.