We only got estimates so don't really know but it was believed that the line of walkers was about 5 miles. It was MUCH more solid on Day One. I know that while we were in Pit 2 on Day 2 and Jennifer's husband was trying to find us, we were there for about an hour and walkers were still coming in when we left. Same thing happened at lunch.
A sweep van would pick you up if you signaled them. They also would pull over if you appeared to be in distress. If you got too far back to make it to camp by 7:00 PM, you were swept regardless. On Day 2, I got back to camp at about 6:00.
News coverage was interesting. The media partner did relatively little coverage while another station mentioned the walk in every broadcast. I am hoping to form an alliance with a radio station here and hopefully get more advance coverage.
I had just climbed the place where I was standing. Believe me- it was pretty high. I had to sift through a lot of photos to get the ones I posted. I don't know that there was a better place to try to capture the line of walkers or not but I will be on the lookout next year.
I think that the media links that NB posted during the walk are still valid. I have a (short) DVD of the local coverage.