I'm guessing it was a library book that at the age 8 or 9 I first read about Yellowstone Park and saw a picture of 'Old Faithful' geyser. Just over 4 decades later, Donna and I are standing looking at 'Old Faithful'. It's just as I remembered the picture, an arc of spectators, a small rise in the ground and a huge fountain of steam and water except that we are waiting for the steam and water. Old faithful is just steaming gently, it blow's its top around every 90 minutes. The crowds have gathered the next predicted eruption is close, then whoosh off it starts, shooting higher and higher into the sky. After around 5 minutes it goes back to sleep and the crowds disperse. 'Old Faithful's' eruption was so impressive that we saw it twice and came back the next day to see it again. Yellowstone was the first National Park in the world ever, founded in 1872. The concept of a protected environment was hard to grasp by many and the US Army built a fort here and stayed for 30 years to ensure the wildlife and the landscape was not plundered or destroyed. Old Faithful may be the main attraction here but there is a whole lot more. This is the largest area of geothermal activity in the world, it is in fact a super volcano. The volcano crater is impossible to make out on the ground as it is so huge, measuring 45 miles across in places. This was our second visit to the park with 2 nights booked at Bridge Bay campground. The plan was to visit the main sites on the lower loop road. There is so much to see here, geysers small and large, some erupt every few minutes, some once a day or even once a week, technicolour hot springs, chromatic pools, mud pots, waterfalls, rivers that steam and boil as hot springs pour into them, a Grand Canyon, green mountains, golden plains, Yellowstone Lake, sea like in size, abundant wildlife, Elk, Buffalo, Deer, Foxes, sometimes distant, sometimes literally by the side of the road or even wandering the parks villages. There are bears and wolves as well but they alluded us. We saw so many geysers, some sleeping, some active, so many strange landscapes and wild animals, this place really is unique. Quite a few things surprised us here, how many visitors there are so late in the season, how difficult it is to get on the RV parks, waking up to snow in Bay Bridge, the amount of geysers, springs, falls, viewpoints that are between the main places of interest - you simply cannot stop and see it all, there is too much. Some campgrounds and services have already closed for the season and more will shut up shop very soon. Yellowstone sits at around 6000 feet and higher, they have a lot of snow here, come mid-October most of the roads into the park will be closed but 'Old Faithful' and the rest of the geysers will not hibernate for winter as the bears do! No sign of Yogi or Booboo!