Bo-4
Senator
The world's tallest geyser is also one of the world's most inconsistent. This would have been pretty cool to see!
http://trib.com/news/state-and-regional/yellowstone-s-steamboat-geyser-produces-rare-eruption/article_6f91164a-093b-5037-a7be-4e7fac9e96d6.html
http://trib.com/news/state-and-regional/yellowstone-s-steamboat-geyser-produces-rare-eruption/article_6f91164a-093b-5037-a7be-4e7fac9e96d6.html