Turban Geyser is intimately connected to Grand Geyser. Grand Geyser only erupts near the start of an eruption of Turban.
During the hours prior to an eruption of Grand, Turban erupts every 15-25 minutes for about five minutes. During Grand's eruption, it will erupt continuously often increasing in size from its normal 5-10 feet to about 20 feet. For the hour or so after Grand's eruption Turban erupts intermittently with Vent Geyser.
Turban is located in the large sinter mound next to Grand's pool. Many people upon first seeing the mound assume that it is Grand instead of Turban. Turban is a fountain-type geyser.
See Grand Geyser for more information.