I checked my GPS track. The cliff where I was stuck is near Mt Muir.

Btw, I saw the topic "Has the permit system increased accidents on Mount Whitney?" The situation of my case is different, not related to social media. But I believe the permit system caused the problem which I encountered. As I mentioned in my first post, there were two persons who wanted to do own hike. They entered the lottery but did not get a permit. I had permits (tags) which I could provide to them. I told them that we should hike as a group which had 10 hikers, otherwise I would not give them permits (tags). They agreed. However, once we started hiking, they did not care about it and just kept going. Other hikers in the group, except me, could follow them. That's why I was separated from the group. I figured out that the two persons said they would hike as a group only because they wanted permits (tags). Without the permit system, out group would not have those two persons in our group and also the two persons would not have been interested in part of our group.