Kerrys link is great...but to take it a few steps further...

http://www.nps.gov/seki/mainvc.htm
http://www.nps.gov/seki/ggvc.htm

I was there in late september and it was truely spectacular. I was doing some work in Fresno, CA, and as usual, took some extra days to have time of my own. It was a relatively short drive up from Fresno. I never got around to posting my article on my website about my visit to the 500 Club in Fresno. I'll have to dig it out and get it posted.

I firmly believe in taking time to visit interesting areas when I travel. There's too many people that travel for work, but don't (or can't) take the extra time to do that. I'm lucky enough to have the luxury to be able to take extra days whenever I want to explore.