"In three cases the ranger had positioned himself at an intersection and checked everyone coming by. The intersections were
1) In Lyell Canyon near Ireland Creek right where hikes taking the Rafferty Creek TH join the JMT
2) In LeConte Canyon right where the Bishop Pass Trail meets the JMT
3) Charlotte Lake/Kearsage Pass intersection"
Manfred, each of those three locations is very close to a ranger station. I suspect that they go out to check permits whenever they don't have anything more pressing to do.
Along the Mount Whitney Trail, it is different since there aren't any ranger stations. For fifteen or twenty years, some wilderness ranger was always standing in the very same place between Long Pine Lake and Outpost Camp. They generally look for a natural choke point where trail users won't be able to avoid them easily.
–B.G.–

