Couldn't have happened soon enough. There are already hundreds of morons tramping out there into preserve land, no prep. In the summer it'll be the damn Magic Bus all over again, no one bringing sufficient water, needing to get rescued, screwing around in the adjoining slot canyon when there are rainclouds on the horizon, fucking with the bighorn population that is supposed to be recovering there...
I don't know the terrain but that sounds like a likely description of what would happen. Slot canyon + rain is a very bad combination!