Steamboat Geyser erupted for the first time in 8 years on July 31st 2013. Steamboat geyser is the worlds tallest active geyser and it’s eruptions can reach heights of 300 feet. It’s intervals have been as long as 50 years and in 1964 it erupted a record 29 times. NBC News has video of the recent eruptions steam phase here: http://www.nbcnews.com/video/nightly-news/52647460#52647460
Note: Attached photo is from a 1960’s eruption.