Typically, they will get dropped off by a pickup truck in the middle of the night and hike into their grow and stay for a set number of days until their people drop off more supplies or rotate the guards in the same fashion. A few years ago, I was deer hunting on a private ranch south of Lake Cachuma and the rancher was telling me of an increased number of marijuana grows that the bad guys were planting on private ranches, he said the local sheriff knew and would sometimes raid the grows but no one would get arrested. Only the pot would get seized.