A book I bought for my son on volcanoes has a page on geysers. The geyser in the image below is listed as being Old Faithful in Yellowstone National Park. I have been fortunate enough to watch Old Faithful many times in my life and I know that the geyser in the picture is definitely not Old Faithful.
Which geyser is this, and where is it? I notice there are palm trees in the background, and so conclude that this isn't even a geyser in Yellowstone.