Normally, the road closed sign is placed just before the beginning of the first switchback, which is approx. 3.5 miles from the TH. I'll let others answer the rest.
CaT
If future generations are to remember us with gratitude rather than contempt, we must leave them more than the miracle of technology. We must leave them a glimpse of the world as it was in the beginning, not just after we got through with it.
- Lyndon Johnson, on signing the Wilderness Act into law (1964)
