The Strokkur geyser is located in the Haukadalar valley in Iceland. The geyser erupts every 6-10 minutes and can throws water around 20m high on each eruption, although it can reach heights of over 40m. Strokkur is Icelandic for “churn”.
Strokkur is located in an area with several geysirs including the much larger Great Geyser or Geysir, however eruptions here are much less frequent and during the time that I visited this geysir was dormant.
The image sequence below shows the eruption of the geyser, the people provide a useful perspective.