Nevertheless, a disturbance or shifting thermal activity could form a new feature nearby. Duration 2-4 minutes. Height 10-15 feet. The Hague Party in 1904 named this feature for its whirling, puffing eruption. Whirligig Geyser begins an-eruption cycle with a sudden filling of the crater progressing into an eruption.
Most activity occurs from the central vent where an angled plume sprays at periodic bursts.
Like many of Morris' geysers there is a roaring, hissing sound accompanying an eruption. There are subterranean connections between Constant, Little Whirligig and Whirligig geysers. Height 100-380 feet. Originally named by the 1878 Hayden Expedition for its steamboat-like spouting. There have been name changes to Fissure and New Crater geyser, but Steamboat is the preferred name.